2018 United States state legislative elections explained

Election Name:2018 United States state legislative elections
Country:United States
Type:legislative
Previous Election:2017 United States state legislative elections
Previous Year:2017
Next Election:2019 United States state legislative elections
Next Year:2019
Seats For Election:87 legislative chambers
46 states
Election Date:November 6, 2018
Ongoing:no
Party1:Republican Party (US)
1Data1:67
2Data1:61
3Data1: 6
Party2:Democratic Party (US)
1Data2:30
2Data2:37
3Data2: 7
Party3:Coalition
1Data3:1
2Data3:1
1Blank:Chambers before
2Blank:Chambers after
3Blank:Overall change
Map Size:320px
Map2 Size:320px
Map2 Caption:Map of lower house elections:





Colour3:d9b2d9

The 2018 United States state legislative elections were held on November 6, 2018, for 87 state legislative chambers in 46 states. Across the fifty states, approximately 56 percent of all upper house seats and 92 percent of all lower house seats were up for election. Additionally, six territorial chambers in four territories and the District of Columbia were up as well.

Democrats flipped at least 350 state legislative seats,[1] picking up most of those seats in states where President Trump's approval rating was relatively low. Six chambers—the Colorado Senate, New Hampshire House, New Hampshire Senate, Minnesota House, Maine Senate and New York State Senate—flipped from Republican to Democratic control.[2] Additionally the Connecticut Senate went from being evenly divided to a Democratic majority. Democrats also broke Republican legislative supermajorities in North Carolina,[3] Michigan and Pennsylvania and gained a legislative supermajority in both houses of the California, Illinois and Oregon legislatures.[4] [5]

Summary table

Regularly-scheduled elections were held in 87 of the 99 state legislative chambers in the United States; nationwide, regularly-scheduled elections were held for 6,064 of the 7,383 legislative seats. Most legislative chambers held elections for all seats, but some legislative chambers that use staggered elections held elections for only a portion of the total seats in the chamber. The chambers that were not up for election either hold regularly-scheduled elections in odd-numbered years, or have four-year terms and hold all regularly-scheduled elections in presidential election years.

Note that this table only covers regularly-scheduled elections; additional special elections took place concurrently with these regularly-scheduled elections.

StateUpper House[6] Lower House
Seats upTotal% upTermSeats upTotal% upTerm
Alabama353510041051051004
Alaska102050440401002
Arizona3030100260601002
Arkansas1835512/41001001002
California204050480801002
Colorado173549465651002
Connecticut363610021511511002
Delaware1021482/441411002
Florida2040502/41201201002
Georgia565610021801801002
Hawaii1225482/451511002
Idaho3535100270701002
Illinois3959662/41181181002
Indiana25505041001001002
Iowa25505041001001002
Kansas040041251251002
Kentucky19385041001001002
Louisiana03904010504
Maine353510021511511002
Maryland474710041411411004
Massachusetts404010021601601002
Michigan383810041101101002
Minnesota06702/41341341002
Mississippi05204012204
Missouri17345041631631002
Montana25505041001001002
Nebraska2449494N/A (unicameral)
Nevada112152442421002
New Hampshire242410024004001002
New Jersey04002/408002
New Mexico042100470701002
New York636310021501501002
North Carolina505010021201201002
North Dakota24475144794504
Ohio163352499991002
Oklahoma24485041011011002
Oregon153050460601002
Pennsylvania25505042032031002
Rhode Island3838100275751002
South Carolina046041241241002
South Dakota3535100270701002
Tennessee173352499991002
Texas1531482/41501501002
Utah142948475751002
Vermont303010021501501002
Virginia04004010002
Washington254949498981002
West Virginia17345041001001002
Wisconsin173352499991002
Wyoming153050460601002
Total1106197256N/A4958541192N/A

Electoral predictions

News sources predicted Democrats would make significant gains in state legislative control, flipping multiple chambers and narrowing Republican majorities in many others.[7]

Ratings are designated as follows:

StatePVIChamberLastelectionGoverningResult
AlabamaSenate data-sort-value="77.1" R 27–8 data-sort-value="77.1" R 27–8
House of Representatives data-sort-value="68.6" R 72–33 data-sort-value="73.3" R 77–28
AlaskaSenate data-sort-value="70.0" R 14–6 data-sort-value="65.0" R 13–7
House of Representatives data-sort-value="-55.0" Coal. 22–18 data-sort-value="-57.5" Coal. 23–15–2
ArizonaSenate data-sort-value="56.7" R 17–13data-sort-value="56.7" R 17–13
House of Representatives data-sort-value="58.3" R 35–25data-sort-value="51.7" R 31–29
ArkansasSenate data-sort-value="74.3" R 26–9data-sort-value="74.3" R 26–9
House of Representatives data-sort-value="73.0" R 73–27data-sort-value="76.0" R 76–24
CaliforniaState Senate data-sort-value="-67.5" D 27–13data-sort-value="-72.3" D 29–11
State Assembly data-sort-value="-68.8" D 55–25 data-sort-value="-76.3" D 61–18–1
ColoradoSenate data-sort-value="51.4" R 18–17 data-sort-value="-54.3" D 19–16
House of Representatives data-sort-value="-56.9" D 37–28 data-sort-value="-63.1" D 41–24
ConnecticutState Senate data-sort-value="0" 18–18 data-sort-value="-61.1" D 22–14
House of Representatives data-sort-value="-53.0" D 80–71 data-sort-value="-64.2" D 97–54
DelawareSenate data-sort-value="-52.4" D 11–10 data-sort-value="-57.1" D 12–9
House of Representatives data-sort-value="-61.0" D 25–16 data-sort-value="-63.4" D 26–15
FloridaSenate data-sort-value="62.5" R 25–15data-sort-value="57.5" R 23–17
House of Representatives data-sort-value="65.8" R 79–41 data-sort-value="60.8" R 73–47
GeorgiaState Senate data-sort-value="67.9" R 38–18 data-sort-value="62.5" R 35–21
House of Representatives data-sort-value="65.6" R 118–62 data-sort-value="58.3" R 105–75
HawaiiSenate data-sort-value="-100.0" D 25–0 data-sort-value="-96.0" D 24–1
House of Representatives data-sort-value="-88.2" D 45–6 data-sort-value="-90.2" D 46–5
IdahoSenate data-sort-value="82.3" R 29–6 data-sort-value="80.0" R 28–7
House of Representatives data-sort-value="84.3" R 59–11 data-sort-value="80.0" R 56–14
IllinoisSenate data-sort-value="-62.7" D 37–22data-sort-value="-67.8" D 40–19
House of Representatives data-sort-value="-56.8" D 67–51 data-sort-value="-62.7" D 74–44
IndianaSenate data-sort-value="82.0" R 41–9 data-sort-value="80.0" R 40–10
House of Representatives data-sort-value="70.0" R 70–30 data-sort-value="67.0" R 67–33
IowaSenate data-sort-value="58.0" R 29–20–1 data-sort-value="64.0" R 32–18
House of Representatives data-sort-value="59.0" R 59–41 data-sort-value="53.0" R 53–47
KansasHouse of Representatives data-sort-value="68.0" R 85–40 data-sort-value="67.2" R 84–41
KentuckySenate data-sort-value="71.1" R 27–11 data-sort-value="73.7" R 28–10
House of Representatives data-sort-value="64.0" R 64–36 data-sort-value="61.0" R 61–39
MaineSenate data-sort-value="51.4" R 18–17 data-sort-value="-60.0" D 21–14
House of Representatives data-sort-value="-51.0" D 77–72–2 data-sort-value="-59.0" D 89–56–6
MarylandSenate data-sort-value="-70.2" D 33–14data-sort-value="-68.1" D 32–15
House of Representatives data-sort-value="-65.2" D 92–49 data-sort-value="-70.2" D 99–42
MassachusettsSenate data-sort-value="-85.0" D 34–6 data-sort-value="-85.0" D 34–6
House of Representatives data-sort-value="-78.1" D 125–35 data-sort-value="-79.4" D 127–32–1
MichiganSenate data-sort-value="71.1" R 27–11 data-sort-value="57.9" R 22–16
House of Representatives data-sort-value="57.3" R 63–47 data-sort-value="50.9" R 58–52
MinnesotaHouse of Representatives data-sort-value="57.5" R 77–57 data-sort-value="-56.0" D 75–59
MissouriSenate data-sort-value="73.5" R 25–9 data-sort-value="70.6" R 23–10
House of Representatives data-sort-value="71.8" R 117–46 data-sort-value="71.2" R 116–47
MontanaSenate data-sort-value="64.0" R 32–18 data-sort-value="60.0" R 30–20
House of Representatives data-sort-value="59.0" R 59–41 data-sort-value="58.0" R 58–42
NevadaSenate data-sort-value="-52.4" D 11–10 data-sort-value="-61.9" D 13–8
Assembly data-sort-value="-64.3" D 27–15 data-sort-value="-61.9" D 29–13
New HampshireSenate data-sort-value="58.3" R 14–10 data-sort-value="-58.3" D 14–10
House of Representatives data-sort-value="56.8" R 227–173 data-sort-value="-58.5" D 234–166
New MexicoHouse of Representatives data-sort-value="-54.3" D 38–32data-sort-value="-65.7" D 46–24
New YorkState Senate data-sort-value="61.9" Coal. 39–24 data-sort-value="-63.5" D 40–23
State Assembly data-sort-value="-70.7" D 106–43–1 data-sort-value="-70.7" D 105–44–1
North CarolinaSenate data-sort-value="70.0" R 35–15 data-sort-value="58.0" R 29–21
House of Representatives data-sort-value="61.7" R 74–46 data-sort-value="54.1" R 65–55
North DakotaSenate data-sort-value="80.7" R 38–9 data-sort-value="78.7" R 37–10
House of Representatives data-sort-value="86.2" R 81–13 data-sort-value="84.0" R 79–15
OhioSenate data-sort-value="72.7" R 24–9 data-sort-value="72.7" R 24–9
House of Representatives data-sort-value="66.7" R 66–33 data-sort-value="61.6" R 61–38
OklahomaSenate data-sort-value="87.5" R 42–6 data-sort-value="81.3" R 38–9
House of Representatives data-sort-value="74.3" R 75–26data-sort-value="76.2" R 77–23
OregonState Senate data-sort-value="-56.7" D 17–13 data-sort-value="-60.0" D 18–12
House of Representatives data-sort-value="-58.3" D 35–25data-sort-value="-63.3" D 38–22
PennsylvaniaState Senate data-sort-value="68.0" R 34–16 data-sort-value="56.0" R 28–21–1
House of Representatives data-sort-value="59.6" R 121–82data-sort-value="54.2" R 110–93
Rhode IslandSenate data-sort-value="-86.8" D 33–5 data-sort-value="-86.8" D 33–5
House of Representatives data-sort-value="-85.3" D 64–10–1data-sort-value="-88.0" D 66–9
South CarolinaHouse of Representatives data-sort-value="64.5" R 80–44 data-sort-value="64.5" R 80–44
South DakotaSenate data-sort-value="82.9" R 29–6 data-sort-value="85.7" R 30–5
House of Representatives data-sort-value="85.7" R 60–10 data-sort-value="84.2" R 59–11
TennesseeSenate data-sort-value="84.8" R 28–5 data-sort-value="81.8" R 27–5
House of Representatives data-sort-value="74.7" R 74–25 data-sort-value="73.7" R 73–26
TexasSenate data-sort-value="64.5" R 20–11 data-sort-value="61.3" R 19–12
House of Representatives data-sort-value="63.3" R 95–55 data-sort-value="56.7" R 83–67
UtahState Senate data-sort-value="82.8" R 24–5 data-sort-value="79.3" R 23–6
House of Representatives data-sort-value="82.7" R 62–13 data-sort-value="78.7" R 59–16
VermontSenate data-sort-value="-70.0" D 21–7–2 data-sort-value="-73.3" D 22–6–2
House of Representatives data-sort-value="-56.7" D 85–53–7–7 data-sort-value="-63.3" D 95–43–7–5
WashingtonState Senate data-sort-value="-53.1" D 26–23data-sort-value="-57.1" D 28–21
House of Representatives data-sort-value="-51.0" D 50–48 data-sort-value="-58.2" D 57–41
West VirginiaSenate data-sort-value="64.7" R 22–12 data-sort-value="58.8" R 20–14
House of Delegates data-sort-value="63.0" R 63–37 data-sort-value="59.0" R 59–41
WisconsinSenate data-sort-value="60.6" R 20–13 data-sort-value="57.5" R 19–14
State Assembly data-sort-value="64.6" R 64–35 data-sort-value="63.6" R 63–34
WyomingSenate data-sort-value="90.0" R 27–3 data-sort-value="90.0" R 27–3
House of Representatives data-sort-value="86.7" R 52–8 data-sort-value="83.3" R 50–9–1

State summaries

Alabama

See main article: 2018 Alabama Senate election and 2018 Alabama House of Representatives election.

All members of the Alabama Senate and the Alabama House of Representatives were up for election in 2018. Republicans retained control of both chambers.

+colspan=5 Alabama Senate
PartyBeforeAfterChange
Republican2627 1
Independent10 1
Democratic88
Total3535
+colspan=5 Alabama House of Representatives
PartyBeforeAfterChange
Republican7277 5
Democratic3328 5
Total105105

Alaska

See main article: 2018 Alaska Senate election and 2018 Alaska House of Representatives election.

Half of the seats of the Alaska Senate and all of the seats of the Alaska House of Representatives were up for election in 2018. Republicans retained control of the Senate, while a cross-partisan coalition of Democrats, Republicans, and independents retained control of the House of Representatives.[8]

+colspan=5 Alaska Senate
PartyBeforeAfterChange
Republican1413 1
Democratic67 1
Total2020
+colspan=5 Alaska House of Representatives
PartyBeforeAfterChange
Democratic1715 2
Independent22
Republican38 2
1815
Total4040

Arizona

See main article: article and 2018 Arizona State Legislature election.

All of the seats of the Arizona Senate and the Arizona House of Representatives were up for election in 2018. Republicans retained control of both chambers, but lost four seats in the House and lost the popular vote in the Senate by 1.4 points.

+colspan=5 Arizona Senate
PartyBeforeAfterChange
Republican1717
Democratic1313
Total3030
+colspan=5 Arizona House of Representatives
PartyBeforeAfterChange
Republican3531 4
Democratic2529 4
Total6060

Arkansas

Half of the seats of the Arkansas Senate and all of the seats of the Arkansas House of Representatives were up for election in 2018. Republicans retained control of both chambers.

+colspan=5 Arkansas Senate
PartyBeforeAfterChange
Republican2829 1
Democratic76 1
Total3535
+colspan=5 Arkansas House of Representatives
PartyBeforeAfterChange
Republican7782 5
Democratic2318 5
Total100100

California

See main article: 2018 California State Senate election and 2018 California State Assembly election.

Half of the seats of the California State Senate and all of the seats of the California State Assembly were up for election in 2018. Democrats retained control of both chambers.

+colspan=5 California State Senate
PartyBeforeAfterChange
Democratic2629 3
Republican1411 3
Total4040
+colspan=5 California State Assembly
PartyBeforeAfterChange
Democratic5560 5
Republican2520 5
Total8080

Colorado

See main article: 2018 Colorado State Senate election and 2018 Colorado House of Representatives election.

Half of the seats of the Colorado Senate and all of the seats of the Colorado House of Representatives were up for election in 2018. Democrats won control of the Senate and retained control of the House of Representatives.

+colspan=5 Colorado Senate
PartyBeforeAfterChange
Democratic1719 2
Republican1816 2
Total3535
+colspan=5 Colorado House of Representatives
PartyBeforeAfterChange
Democratic3742 5
Republican2823 5
Total6565

Connecticut

See main article: 2018 Connecticut State Senate election and 2018 Connecticut House of Representatives election.

All of the seats of the Connecticut State Senate and the Connecticut House of Representatives were up for election in 2018. Democrats won control of the Senate, which was previously tied and retained control of the House of Representatives.

+colspan=5 Connecticut State Senate
PartyBeforeAfterChange
Democratic1823 5
Republican1813 5
Total3636
+colspan=5 Connecticut House of Representatives
PartyBeforeAfterChange
Democratic8092 12
Republican7159 12
Total151151

Delaware

See main article: 2018 Delaware State Senate election and 2018 Delaware House of Representatives election.

Half of the seats of the Delaware Senate and all of the seats of the Delaware House of Representatives were up for election in 2018. Democrats retained control of both chambers.

+colspan=5 Delaware Senate
PartyBeforeAfterChange
Democratic1112 1
Republican109 1
Total2121
+colspan=5 Delaware House of Representatives
PartyBeforeAfterChange
Democratic2526 1
Republican1615 1
Total4141

Florida

See main article: 2018 Florida Senate election and 2018 Florida House of Representatives election.

Half of the seats of the Florida Senate and all of the seats of the Florida House of Representatives were up for election in 2018. Republicans retained control of both chambers.

+colspan=5 Florida Senate
PartyBeforeAfterChange
Republican2423 1
Democratic1617 1
Total4040
+colspan=5 Florida House of Representatives
PartyBeforeAfterChange
Republican7873 5
Democratic4247 5
Total120120

Georgia

See main article: 2018 Georgia State Senate election and 2018 Georgia House of Representatives election.

All of the seats of the Georgia State Senate and the Georgia House of Representatives were up for election in 2018. Republicans retained control of both chambers.

+colspan=5 Georgia State Senate
PartyBeforeAfterChange
Republican3735 2
Democratic1921 2
Total5656
+colspan=5 Georgia House of Representatives
PartyBeforeAfterChange
Republican116105 11
Democratic6475 11
Total180180

Hawaii

See main article: 2018 Hawaii Senate election and 2018 Hawaii House of Representatives election.

Half of the seats of the Hawaii Senate and all of the seats of the Hawaii House of Representatives were up for election in 2018. Democrats retained control of both chambers.

+colspan=5 Hawaii Senate
PartyBeforeAfterChange
Democratic2524 1
Republican01 1
Total2525
+colspan=5 Hawaii House of Representatives
PartyBeforeAfterChange
Democratic4646
Republican55
Total5151

Idaho

All of the seats of the Idaho Senate and the Idaho House of Representatives were up for election in 2018. Republicans retained control of both chambers.

+colspan=5 Idaho Senate
PartyBeforeAfterChange
Republican2928 1
Democratic67 1
Total3535
+colspan=5 Idaho House of Representatives
PartyBeforeAfterChange
Republican5956 3
Democratic1114 3
Total7070

Illinois

See main article: 2018 Illinois Senate election and 2018 Illinois House of Representatives election.

Two-thirds of the seats of the Illinois Senate and all of the seats of the Illinois House of Representatives were up for election in 2018. Democrats retained control of both chambers.

+colspan=5 Illinois Senate
PartyBeforeAfterChange
Democratic3740 3
Republican2219 3
Total5959
+colspan=5 Illinois House of Representatives
PartyBeforeAfterChange
Democratic6774 7
Republican5144 7
Total118118

Indiana

See main article: 2018 Indiana State Senate election.

Half of the seats of the Indiana Senate and all of the seats of the Indiana House of Representatives were up for election in 2018. Republicans retained control of both chambers.

+colspan=5 Indiana Senate
PartyBeforeAfterChange
Republican4140 1
Democratic910 1
Total5050
+colspan=5 Indiana House of Representatives
PartyBeforeAfterChange
Republican7067 3
Democratic3033 3
Total100100

Iowa

See main article: 2018 Iowa Senate election and 2018 Iowa House of Representatives election.

Half of the seats of the Iowa Senate and all of the seats of the Iowa House of Representatives were up for election in 2018. Republicans retained control of both chambers.

+colspan=5 Iowa Senate
PartyBeforeAfterChange
Republican2932 3
Democratic2018 2
Independent10 1
Total5050
+colspan=5 Iowa House of Representatives
PartyBeforeAfterChange
Republican5953 6
Democratic4147 6
Total100100

Kansas

All of the seats of the Kansas House of Representatives were up for election in 2018; the Republican-controlled Kansas Senate did not hold regularly scheduled elections in 2018. Republicans retained control of the House of Representatives.

+colspan=5 Kansas House of Representatives
PartyBeforeAfterChange
Republican8585
Democratic4040
Total125125

Kentucky

See main article: 2018 Kentucky Senate election and 2018 Kentucky House of Representatives election.

Half of the seats of the Kentucky Senate and all of the seats of the Kentucky House of Representatives were up for election in 2018. Republicans retained control of both chambers.

+colspan=5 Kentucky Senate
PartyBeforeAfterChange
Republican2728 1
Democratic1110 1
Total3838
+colspan=5 Kentucky House of Representatives
PartyBeforeAfterChange
Republican6361 2
Democratic3739 2
Total100100

Maine

See main article: 2018 Maine State Senate election and 2018 Maine House of Representatives election.

All of the seats of the Maine Senate and the Maine House of Representatives were up for election in 2018. Democrats gained control of the state senate and retained control of the House of Representatives.

+colspan=5 Maine Senate
PartyBeforeAfterChange
Democratic1721 4
Republican1814 4
Total3535
+colspan=5 Maine House of Representatives
PartyBeforeAfterChange
Democratic7389 16
Republican7057 13
Independent75 2
Green10 1
Total151151

Maryland

See main article: 2018 Maryland Senate election and 2018 Maryland House of Delegates election. All of the seats of the Maryland Senate and the Maryland House of Delegates were up for election in 2018. Democrats retained control of both chambers.

+colspan=5 Maryland Senate
PartyBeforeAfterChange
Democratic3332 1
Republican1415 1
Total4747
+colspan=5 Maryland House of Delegates
PartyBeforeAfterChange
Democratic9299 7
Republican4942 7
Total141141

Massachusetts

See main article: 2018 Massachusetts Senate election.

All of the seats of the Massachusetts Senate and the Massachusetts House of Representatives were up for election in 2018. Democrats control both chambers, and the governor is a member of the Republican Party. Democrats hold a veto-proof supermajority in the state legislature.[9]

+colspan=5 Massachusetts Senate
PartyBeforeAfterChange
Democratic3334 1
Republican76 1
Total4040
+colspan=5 Massachusetts House of Representatives
PartyBeforeAfterChange
Democratic125127 2
Republican3432 2
Independent11
Total160160

Michigan

See main article: 2018 Michigan Senate election and 2018 Michigan House of Representatives election.

All of the seats of the Michigan Senate and the Michigan House of Representatives were up for election in 2018. Republicans retained control of both chambers, but Democrats picked up enough seats to break the Republican legislative supermajority.[10]

+colspan=5 Michigan Senate
PartyBeforeAfterChange
Republican2722 5
Democratic1116 5
Total110110
+colspan=5 Michigan House of Representatives
PartyBeforeAfterChange
Republican6358 5
Democratic4752 5
Total110110

Minnesota

See main article: 2018 Minnesota House of Representatives election.

All of the seats of the Minnesota House of Representatives were up for election in 2018; the Republican-controlled Minnesota Senate did not hold regularly scheduled elections in 2018. Democrats won control of the House of Representatives, making Minnesota the only state in the country where each major party controlled one state legislative chamber.[1]

+colspan=5 Minnesota House of Representatives
PartyBeforeAfterChange
Democratic (DFL)5775 18
Republican7759 18
Total134134

Missouri

See main article: 2018 Missouri Senate election.

Half of the seats of the Missouri Senate and all of the seats of the Missouri House of Representatives were up for election in 2018. Republicans retained control of both chambers.

+colspan=5 Missouri Senate
PartyBeforeAfterChange
Republican2424
Democratic1010
Total3434
+colspan=5 Missouri House of Representatives
PartyBeforeAfterChange
Republican117116 1
Democratic4647 1
Total163163

Montana

See main article: 2018 Montana House of Representatives election and 2018 Montana Senate election.

Half of the seats of the Montana Senate and all of the seats of the Montana House of Representatives were up for election in 2018. Republicans retained control of both chambers.

+colspan=5 Montana Senate
PartyBeforeAfterChange
Republican3230 2
Democratic1820 2
Total5050
+colspan=5 Montana House of Representatives
PartyBeforeAfterChange
Republican5958 1
Democratic4142 1
Total100100

Nebraska

See main article: 2018 Nebraska State Legislature election. Nebraska is the only U.S. state with a unicameral legislature; half of the seats of the Nebraska Legislature were up for election in 2018. Nebraska is also unique in that its legislature is officially non-partisan and holds non-partisan elections, although the Democratic and Republican parties each endorse legislative candidates. Republicans maintained control.

+colspan=5 Nebraska Legislature
PartyBeforeAfterChange
Republican3130 1
Democratic1618 2
Independent11
Libertarian10 1
Total4949

Nevada

See main article: 2018 Nevada State Senate election.

Half of the seats of the Nevada Senate and all of the seats of the Nevada Assembly were up for election in 2018. Democrats retained control of both chambers.

+colspan=5 Nevada Senate
PartyBeforeAfterChange
Democratic1213 1
Republican98 1
Total2121
+colspan=5 Nevada Assembly
PartyBeforeAfterChange
Democratic2729 2
Republican1513 2
Total4242

New Hampshire

See main article: 2018 New Hampshire Senate election and 2018 New Hampshire House of Representatives election.

All of the seats of the New Hampshire Senate and the New Hampshire House of Representatives were up for election in 2018. Democrats won control of both chambers.

+colspan=5 New Hampshire Senate
PartyBeforeAfterChange
Democratic1014 4
Republican1410 4
Total2424
+colspan=5 New Hampshire House of Representatives
PartyBeforeAfterChange
Democratic173234 61
Republican227166 61
Total400400

New Mexico

See main article: 2018 New Mexico House of Representatives election.

All of the seats of the New Mexico House of Representatives were up for election in 2018; the Democratic-controlled New Mexico Senate did not hold regularly scheduled elections in 2018. Democrats retained control of the House of Representatives.

+colspan=5 New Mexico House of Representatives
PartyBeforeAfterChange
Democratic3946 7
Republican3124 7
Total7070

New York

See main article: 2018 New York State Senate election and 2018 New York State Assembly election.

All of the seats of the New York State Senate and the New York State Assembly were up for election in 2018. Democrats won control of the state senate and retained control of the state assembly.

+colspan=5 New York State Senate
PartyBeforeAfterChange
Democratic3139 8
11
Republican31 23 8
Total6363
+colspan=5 New York State Assembly
PartyBeforeAfterChange
Democratic107106 1
Republican4243 1
Independence11
Total150150

North Carolina

See main article: 2018 North Carolina Senate election and 2018 North Carolina House of Representatives election.

All of the seats of the North Carolina Senate and the North Carolina House of Representatives were up for election in 2018. Republicans retained control of both chambers, but Democrats won enough seats to break the Republican legislative super-majority.[3]

+colspan=5 North Carolina Senate
PartyBeforeAfterChange
Republican3529 6
Democratic1521 6
Total5050
+colspan=5 North Carolina House of Representatives
PartyBeforeAfterChange
Republican7565 10
Democratic4555 10
Total120120

North Dakota

Half of the seats of the North Dakota Senate and the North Dakota House of Representatives were up for election in 2018. Republicans retained control of both chambers.

+colspan=5 North Dakota Senate
PartyBeforeAfterChange
Republican3837 1
Democratic-NPL910 1
Total4747
+colspan=5 North Dakota House of Representatives
PartyBeforeAfterChange
Republican8179 2
Democratic-NPL1315 2
Total9494

Ohio

See main article: 2018 Ohio Senate election and 2018 Ohio House of Representatives election.

Half of the seats of the Ohio Senate and all of the seats of the Ohio House of Representatives were up for election in 2018. Republicans retained control of both chambers.

+colspan=5 Ohio Senate
PartyBeforeAfterChange
Republican2424
Democratic99
Total3333
+colspan=5 Ohio House of Representatives
PartyBeforeAfterChange
Republican6658 5
Democratic3238 5
Total9999

Oklahoma

Half of the seats of the Oklahoma Senate and all of the seats of the Oklahoma House of Representatives were up for election in 2018. Republicans retained control of both chambers.

+colspan=5 Oklahoma Senate
PartyBeforeAfterChange
Republican4239 3
Democratic69 3
Total4848
+colspan=5 Oklahoma House of Representatives
PartyBeforeAfterChange
Republican7577 2
Democratic2624 2
Total101101

Oregon

See main article: 2018 Oregon legislative election.

Half of the seats of the Oregon State Senate and all of the seats of the Oregon House of Representatives were up for election in 2018. Democrats retained control of both chambers.

+colspan=5 Oregon State Senate
PartyBeforeAfterChange
Democratic1718 1
Republican1312 1
Total3030
+colspan=5 Oregon House of Representatives
PartyBeforeAfterChange
Democratic3538 3
Republican2522 3
Total5050

Pennsylvania

See main article: 2018 Pennsylvania Senate election and 2018 Pennsylvania House of Representatives election.

Half of the seats of the Pennsylvania State Senate and all of the seats of the Pennsylvania House of Representatives were up for election in 2018. Republicans retained control of both chambers, but Democrats picked up enough seats to break the Republican legislative supermajority.[10]

+colspan=5 Pennsylvania State Senate
PartyBeforeAfterChange
Republican3429 5
Democratic1621 5
Total5050
+colspan=5 Pennsylvania House of Representatives
PartyBeforeAfterChange
Republican121110 11
Democratic8293 11
Total203203

Rhode Island

All of the seats of the Rhode Island Senate and the Rhode Island House of Representatives were up for election in 2018. Democrats retained control of both chambers.

+colspan=5 Rhode Island Senate
PartyBeforeAfterChange
Democratic3333
Republican55
Total3838
+colspan=5 Rhode Island House of Representatives
PartyBeforeAfterChange
Democratic6466 2
Republican119 2
Total7575

South Carolina

See main article: 2018 South Carolina House of Representatives election.

All of the seats of the South Carolina House of Representatives were up for election in 2018; the Republican-controlled South Carolina Senate did not hold regularly scheduled elections in 2018. Republicans retained control of the House of Representatives.

+colspan=5 South Carolina House of Representatives
PartyBeforeAfterChange
Republican8080
Democratic4444
Total124124

South Dakota

All of the seats of the South Dakota Senate and the South Dakota House of Representatives were up for election in 2018. Republicans retained control of both chambers.

+colspan=5 South Dakota Senate
PartyBeforeAfterChange
Republican2930 1
Democratic65 1
Total3535
+colspan=5 South Dakota House of Representatives
PartyBeforeAfterChange
Republican6059 1
Democratic1011 1
Total7070

Tennessee

See main article: 2018 Tennessee State Senate election and 2018 Tennessee House of Representatives election.

Half of the seats of the Tennessee Senate and all of the seats of the Tennessee House of Representatives were up for election in 2018. Republicans retained control of both chambers.

+colspan=5 Tennessee Senate
PartyBeforeAfterChange
Republican2828
Democratic55
Total3333
+colspan=5 Tennessee House of Representatives
PartyBeforeAfterChange
Republican7473 1
Democratic2526 1
Total9999

Texas

See main article: 2018 Texas Senate election and 2018 Texas House of Representatives election.

Half of the seats of the Texas Senate and all of the seats of the Texas House of Representatives were up for election in 2018. Republicans retained control of both chambers.

+colspan=5 Texas Senate
PartyBeforeAfterChange
Republican2119 2
Democratic1012 2
Total3131
+colspan=5 Texas House of Representatives
PartyBeforeAfterChange
Republican9583 12
Democratic5567 12
Total150150

Utah

See main article: 2018 Utah Senate election and 2018 Utah House of Representatives election.

Half of the seats of the Utah State Senate and all of the seats of the Utah House of Representatives were up for election in 2018. Republicans retained control of both chambers.

+colspan=5 Utah State Senate
PartyBeforeAfterChange
Republican2423 1
Democratic56 1
Total2929
+colspan=5 Utah House of Representatives
PartyBeforeAfterChange
Republican6259 3
Democratic1316 3
Total7575

Vermont

See main article: 2018 Vermont Senate election and 2018 Vermont House of Representatives election.

All of the seats of the Vermont Senate and the Vermont House of Representatives were up for election in 2018. Democrats retained control of both chambers.

+colspan=5 Vermont Senate
PartyBeforeAfterChange
Democratic2122 1
Republican76 1
Progressive22
Total3030
+colspan=5 Vermont House of Representatives
PartyBeforeAfterChange
Democratic8395 12
Republican5343 10
Progressive77
Independent75 2
Total150150

Washington

See main article: 2018 Washington State Senate election and 2018 Washington House of Representatives election.

Half of the seats of the Washington State Senate and all of the seats of the Washington House of Representatives were up for election in 2018. Democrats had previously flipped control of the Senate in a 2017 special election.[11] Democrats retained control of both chambers.

+colspan=5 Washington State Senate
PartyBeforeAfterChange
Democratic2528 3
11 3
Republican2320
Total4949
+colspan=5 Washington House of Representatives
PartyBeforeAfterChange
Democratic5057 7
Republican4841 7
Total9898

West Virginia

See main article: 2018 West Virginia Senate election and 2018 West Virginia House of Delegates election.

Half of the seats of the West Virginia Senate and all of the seats of the West Virginia House of Delegates were up for election in 2018. Republicans retained control of both chambers.

+colspan=5 West Virginia Senate
PartyBeforeAfterChange
Republican2220 2
Democratic1214 2
Total3434
+colspan=5 West Virginia House of Delegates
PartyBeforeAfterChange
Republican6457 7
Democratic3643 7
Total100100

Wisconsin

See main article: 2018 Wisconsin State Senate election and 2018 Wisconsin State Assembly election.

Half of the seats of the Wisconsin State Senate and all of the seats of the Wisconsin State Assembly were up for election in 2018. Republicans retained control of both chambers.

+colspan=5 Wisconsin Senate
PartyBeforeAfterChange
Republican1819 1
Democratic1514 1
Total3333
+colspan=5 Wisconsin State Assembly
PartyBeforeAfterChange
Republican6463 1
Democratic3536 1
Total9999

Wyoming

See main article: 2018 Wyoming State Senate election and 2018 Wyoming House of Representatives election.

Half of the seats of the Wyoming Senate and all of the seats of the Wyoming House of Representatives were up for election in 2018. Republicans retained control of both chambers.

+colspan=5 Wyoming Senate
PartyBeforeAfterChange
Republican2727
Democratic33
Total3030
+colspan=5 Wyoming House of Representatives
PartyBeforeAfterChange
Republican5150 1
Democratic99
Independent01 1
Total6060

Territorial and federal district summaries

American Samoa

All of the seats of the American Samoa House of Representatives were up for election. Members of the House of Representatives serve two-year terms. Gubernatorial and legislative elections are conducted on a nonpartisan basis in American Samoa.

Guam

All of the seats of the unicameral Legislature of Guam were up for election. All members of the legislature serve a two-year term. Democrats retained control of the legislature.

+colspan=5 Guam Legislature
PartyBeforeAfterChange
Democratic910 1
Republican65 1
Total1515

Northern Mariana Islands

A portion of the seats of the Northern Mariana Islands Senate, and all of the seats of the Northern Mariana Islands House of Representatives, were up for election. Members of the senate serve either four-year terms, while members of the house serve two-year terms. Republicans maintained control of both chambers.

+colspan=5 Northern Mariana Islands Senate[12]
PartyBeforeAfterChange
Republican76 1
Independent23 1
Democratic00
Total99
+colspan=5 Northern Mariana Islands House of Representatives[13]
PartyBeforeAfterChange
Republican1513 2
Democratic00
57 2
Total2020

U.S. Virgin Islands

All of the seats of the unicameral Legislature of the Virgin Islands were up for election. All members of the legislature serve a two-year term. Democrats retained control of the legislature.

+colspan=5 Virgin Islands Legislature
PartyBeforeAfterChange
Democratic1113 2
Independent42 2
Total1515

Washington, D.C.

The Council of the District of Columbia serves as the legislative branch of the federal district of Washington, D.C. Half of the council seats are up for election. Council members serve four-year terms. Democrats retained supermajority control of the council.

+colspan=5 District of Columbia Council
PartyBeforeAfterChange
Democratic1111
Independent22
Total1313

Special elections

Various states will hold special elections for legislative districts throughout the year.[14]

Alabama

DistrictIncumbentThis race
ChamberNo.RepresentativePartyFirst
elected
ResultsCandidates
House21Jim PattersonRepublican2010Incumbent died October 2, 2017, of heart attack.
New member elected March 27, 2018.
Republican hold.
nowrap
  • Rex Reynolds (Republican) 52.8%
  • C. Terry Jones (Democratic) 47.1%
House4Micky HammonRepublican2002Incumbent resigned September 11, 2017.
New member elected May 15, 2018.
Republican hold.
nowrap
  • Parker Moore (Republican) 65.0%
  • Jo Ann Cummings (Democratic) 25.4%
  • Pete Wills (Independent) 9.5%
Senate26Quinton T. Ross, Jr.Democratic2002Incumbent resigned October 2, 2017, to become the president of Alabama State University
New member elected May 15, 2018.
Democratic hold.
nowrap

New Jersey

DistrictIncumbentThis race
ChamberNo.RepresentativePartyFirst
elected
ResultsCandidates[15] [16]
Senate38Robert M. GordonDemocratic2007Incumbent resigned April 4, 2018, to join the New Jersey Board of Public Utilities.[17]
New member elected November 6, 2018.
Democratic hold.
nowrap
  • Joseph Lagana (Democratic) 60.1%
  • Daisy Ortiz Berger (Republican) 39.9%
Assembly5Arthur BarclayDemocratic2015Incumbent resigned June 18, 2018, following arrest for assault.[18]
New member elected November 6, 2018.
Democratic hold.
nowrap
Assembly15Elizabeth Maher MuoioDemocratic2015
Incumbent resigned January 15, 2018, to become State Treasurer of New Jersey.[19]
New member elected November 6, 2018.
Democratic hold.
nowrap
Assembly15Reed GuscioraDemocratic1995Incumbent resigned June 30, 2018, to become Mayor of Trenton.[20]
New member elected November 6, 2018.
Democratic hold.
nowrap
  • Anthony Verrelli (Democratic) 71.5%
  • Justin Tibbetts (Republican) 25.5%
  • Alex Bethea (Integrity Transparency Accountability) 3.0%
Assembly22Jerry GreenDemocratic1991Incumbent died April 18, 2018, from a long illness.[21]
New member elected November 6, 2018.
Democratic hold.
nowrap
Assembly32Vincent PrietoDemocratic2004
Incumbent resigned February 26, 2018, to become President and CEO of the New Jersey Sports and Exposition Authority.[22]
New member elected November 6, 2018.
Democratic hold.
nowrap
Assembly34Sheila OliverDemocratic2003Incumbent resigned January 9, 2018, to become Lieutenant Governor of New Jersey.[23]
New member elected November 6, 2018.
Democratic hold.
nowrap
  • Britnee Timberlake (Democratic) 81.9%
  • Irene DeVita (Republican) 16.6%
  • Clenard Howard Childress Jr. (Stop the Insanity) 1.5%
Assembly36Marlene CarideDemocratic2011Incumbent resigned January 16, 2018, to become Commissioner of the New Jersey Department of Banking and Insurance.[24]
New member elected November 6, 2018.
Democratic hold.
nowrap
Assembly38Joseph LaganaDemocratic2013Incumbent resigned April 12, 2018, to join the State Senate.[25]
New member elected November 6, 2018.
Democratic hold.
nowrap
  • Lisa Swain (Democratic) 59.7%
  • Gail Horton (Republican) 40.3%
Assembly38Tim EustaceDemocratic2011Incumbent resigned April 13, 2018, to become Deputy Director of the North Jersey District Water Supply Commission.[26]
New member elected November 6, 2018.
Democratic hold.
nowrap
  • Chris Tully (Democratic) 59.3%
  • Jayme Ouellette (Republican) 40.7%

Notes and References

  1. News: Quinton . Sophie . Povich . Elaine S. . So Much Changed in Statehouses This Week. Here's What It All Means. . Stateline. The Pew Charitable Trusts. November 9, 2018.
  2. http://www.ncsl.org/research/elections-and-campaigns/statevote-2018-state-legislative-races-and-ballot-measures.aspx NCSL State Vote
  3. Jim Morrill & Paul A. Specht, Blue waves in urban North Carolina help Democrats break GOP 'supermajorities', Charlotte Observer (November 7, 2018).
  4. Connor Radnovich, Oregon Democrats secure supermajorities in both chambers of Oregon Legislature, Salem Statesman Journal (November 7, 2018).
  5. News: Wildermuth . John . Nearly a Week After Election Day, California Democrats Regain Supermajority in Legislature . November 13, 2018 . Governing . November 13, 2018.
  6. Web site: 2018 Legislative Races by State and Legislative Chamber . National Conference of State Legislatures.
  7. Web site: Jacobson . Louis . 2018-10-08 . A Month Before Election Day, Democrats Poised for Legislative Gains . 2024-06-27 . Governing . en.
  8. News: Wilson . Reid . Alaska House elects a Speaker after more than a month of gridlock . The Hill . February 15, 2019.
  9. News: Young . Colin A. . Lannan . Katie . Democrats Further Solidify Super-Majorities In The Mass. House And Senate . WBUR News . November 7, 2018.
  10. News: Rogers . Steven . The blue wave was big—and significant—in state legislatures . November 12, 2018 . Washington Post . November 12, 2018.
  11. News: May . Patrick . November 8, 2017 . On election night, Democratic voters erect 'big blue wall' on the West Coast . live . https://web.archive.org/web/20171109001018/http://www.mercurynews.com/2017/11/08/on-election-night-democratic-voters-erect-big-blue-wall-on-the-west-coast/ . November 9, 2017 . November 9, 2017 . The Mercury News.
  12. Web site: Northern Mariana Islands Senate . Ballotpedia . November 4, 2020 . January 12, 2021 .
  13. Web site: Northern Mariana Islands House of Representatives . Ballotpedia . November 4, 2020 . January 12, 2021 .
  14. Web site: State legislative special elections, 2021 . Ballotpedia .
  15. Web site: Official List, Candidates for State Senate For GENERAL ELECTION 11/06/2018 Election . . July 31, 2022 . December 3, 2018.
  16. Web site: Official List, Candidates for General Assembly For GENERAL ELECTION 11/06/2018 Election . . July 31, 2022 . December 3, 2018.
  17. Web site: Tate. Curtis. Gov. Phil Murphy appoints Sen. Bob Gordon to NJ utility watchdog. NorthJersey.com. April 14, 2018. April 5, 2018.
  18. Web site: Trethan . Phaedra . Assemblyman Arthur Barclay resigns after arrest for simple assault . . June 18, 2018 . June 18, 2018.
  19. Curran, Phillip Sean. "Assemblywoman Muoio resigns, creating vacancy in legislature", CentralJersey.com, January 17, 2018.
  20. News: Mercer Freeholder Verrelli wins appointment to Gusciora's vacant Assembly seat . July 26, 2018 . Sulaiman . Abdur-Rahman . The Trentonian . August 12, 2018.
  21. Web site: Pizarro. Max. Rest in Peace, Assemblyman and Union County Democratic Chairman Jerry Green of Plainfield. Insider NJ. April 21, 2018. April 19, 2018.
  22. Web site: Johnson. Brent. Ex-Assembly speaker Prieto lands $280K job as head of N.J. sports authority. NJ.com. March 25, 2018. February 15, 2018.
  23. Web site: O'Dea. Colleen. Who's Who, Who's New, And Who's Blue In 218th Legislative Session. NJ Spotlight. January 13, 2018. January 10, 2018.
  24. Web site: Blosfield . Elizabeth . Caride Named Acting Commissioner of N.J. Department of Banking and Insurance . Insurance Journal . June 18, 2018 . February 14, 2018.
  25. Web site: Van Vliet. John. Assemblyman Joseph Lagana to Succeed Senator Bob Gordon in the 38th District. TAPinto. April 14, 2018. April 4, 2018.
  26. Web site: Kanzler. Kaitlyn. Tim Eustace to become deputy director of North Jersey District Water Supply Commission. NorthJersey.com. April 14, 2018. April 12, 2018.