2018 Delaware Senate election should not be confused with 2018 United States Senate election in Delaware.
| Election Name: | 2018 Delaware Senate election |
| Country: | Delaware |
| Type: | legislative |
| Ongoing: | no |
| Previous Election: | 2016 Delaware Senate election |
| Previous Year: | 2016 |
| Next Election: | 2020 Delaware Senate election |
| Next Year: | 2020 |
| Seats For Election: | 10 of the 21 seats in the Delaware State Senate |
| Majority Seats: | 11 |
| Turnout: | 52.20% |
| Leader1: | David McBride |
| Party1: | Democratic |
| Colour1: | 3333ff |
| Leader Since1: | January 17, 2017 |
| Leaders Seat1: | 13th - New Castle |
| Last Election1: | 11 |
| Seats Before1: | 11 |
| Seats1: | 6 |
| Seats After1: | 12 |
| Seat Change1: | 1 |
| Popular Vote1: | 94,396 |
| Percentage1: | 57.91% |
| Leader2: | Gary Simpson (retired) |
| Party2: | Republican |
| Colour2: | ff3333 |
| Leader Since2: | January 8, 2009 |
| Leaders Seat2: | 18th - Milford |
| Last Election2: | 10 |
| Seats Before2: | 10 |
| Seats2: | 4 |
| Seats After2: | 9 |
| Seat Change2: | 1 |
| Popular Vote2: | 68,613 |
| Percentage2: | 42.09% |
| Map Size: | 130px |
| President pro tempore | |
| Before Election: | David McBride |
| Before Party: | Delaware Democratic Party |
| After Election: | David McBride |
| After Party: | Delaware Democratic Party |
The 2018 Delaware Senate election was held on November 6, 2018, to elect 10 of the 21 members to Delaware's State Senate. The election coincided with the elections for other offices, including U.S. Senate, U.S. House of Representatives and state house. The primary election was held on September 6, 2018.[1]
Delaware Republicans needed to have a net gain of 1 seat to flip the chamber from the Democrats, however, Democrats increased their majority in the Senate by gaining 1 seat (winning 12 seats compared to 9 seats for the Republicans).[2]
| District | Incumbent | Party | Elected Senator | Party | |||
|---|---|---|---|---|---|---|---|
| 2 | Margaret Rose Henry | Dem | Darius Brown | Dem | |||
| 3 | Robert Marshall | Dem | Elizabeth Lockman | Dem | |||
| 4 | Gregory Lavelle | Rep | Laura Sturgeon | Dem | |||
| 6 | Ernesto Lopez | Rep | Ernesto Lopez | Rep | |||
| 10 | Stephanie Hansen | Dem | Stephanie Hansen | Dem | |||
| 11 | Bryan Townsend | Dem | Bryan Townsend | Dem | |||
| 16 | Colin Bonini | Rep | Colin Bonini | Rep | |||
| 17 | Brian Bushweller | Dem | Charles Paradee | Dem | |||
| 18 | Gary Simpson | Rep | David Wilson | Rep | |||
| 21 | Bryant Richardson | Rep | Bryant Richardson | Rep | |||
| Party | Candi- dates | Votes | Seats | |||||
|---|---|---|---|---|---|---|---|---|
| No. | % | No. | +/– ! | % | ||||
| Democratic | 10 | 94,396 | 57.91% | 12 | 1 | 57.14% | ||
| 8 | 68,613 | 42.09% | 9 | 1 | 42.86% | |||
| Total | 18 | 163,009 | 100% | 21 | 100% | |||
Incumbent Democrat Majority Leader Margaret Rose Henry has represented the 2nd district since 1994. Henry retired and fellow Democrat Darius Brown won the open seat.
Incumbent Democrat Robert Marshall has represented the 3rd district since 1979. Marshall retired and fellow Democrat Elizabeth Lockman won the open seat.
Incumbent Republican Gregory Lavelle has represented the 4th district since 2013. Lavelle lost re-election to Democrat Laura Sturgeon.
Incumbent Republican Ernesto Lopez has represented the 6th district since 2013.
Incumbent Democrat Stephanie Hansen has represented the 10th district since 2017.
Incumbent Democrat Bryan Townsend has represented the 11th district since 2013.
Incumbent Republican Colin Bonini has represented the 16th district since 1995.
Incumbent Democrat Brian Bushweller has represented the 17th district since 2009. Bushweller retired and fellow Democrat Charles Paradee won the open seat.
Incumbent Republican Minority Leader Gary Simpson has represented the 18th district since 1999. Simpson retired and fellow Republican David Wilson won the open seat.
Incumbent Republican Bryant Richardson has represented the 21st district since 2015.