2010 Wisconsin Senate election should not be confused with 2010 United States Senate election in Wisconsin.
| Election Name: | 2010 Wisconsin State Senate election |
| Country: | Wisconsin |
| Type: | legislative |
| Ongoing: | no |
| Previous Election: | 2008 Wisconsin Senate election |
| Previous Year: | 2008 |
| Next Election: | 2012 Wisconsin Senate election |
| Next Year: | 2012 |
| Seats For Election: | 17 of 33 seats in the Wisconsin State Senate |
| Majority Seats: | 17 |
| Election Date: | November 2, 2010 |
| Image1: | Sen. Fitzgerald (3523124714).jpg |
| Image1 Size: | x150px |
| Leader1: | Scott L. Fitzgerald |
| Party1: | Republican Party of Wisconsin |
| Seats Before1: | 15 |
| Seats Needed1: | 2 |
| Seats1: | 10 |
| Seats After1: | 19 |
| Seat Change1: | 4 |
| Swing1: | 13.6 |
| Popular Vote1: | 627,160 |
| Percentage1: | 59.1% |
| Image2 Size: | x150px |
| Leader2: | Russ Decker (defeated) |
| Party2: | Democratic Party of Wisconsin |
| Seats Before2: | 18 |
| Seats Needed2: | 11 |
| Seats2: | 6 |
| Seats After2: | 14 |
| Seat Change2: | 4 |
| Swing2: | 13.5 |
| Popular Vote2: | 430,068 |
| Percentage2: | 40.53% |
| Elected Members: | 2011 (Recall) |
| President | |
| Before Election: | Fred Risser |
| Before Party: | Democratic Party of Wisconsin |
| After Election: | Michael Ellis |
| After Party: | Republican Party of Wisconsin |
The 2010 Wisconsin Senate elections were held on Tuesday, November 2, 2010. Seventeen of the 33 seats in the Wisconsin State Senate were up for election - the odd-numbered districts.[1] Before the election, 18 Senate seats were held by Democrats and 15 seats were held by Republicans. 10 Democratic seats and 7 Republican seats were up in this election. The primary election took place on September 14, 2010.
Republicans flipped four Democratic-held Senate seats and achieved a majority for the first time since 2004, entering the 100th Wisconsin Legislature with 19 of 33 State Senate seats.[2]
| Seats | Party (majority caucus shading) | Total | |||
|---|---|---|---|---|---|
| Democratic | Republican | ||||
| Last election (2008) | 8 | 8 | 16 | ||
| Total after last election (2008) | 18 | 15 | 33 | ||
| Total before this election | 18 | 15 | 33 | ||
| Up for election | 10 | 7 | 17 | ||
| of which: | Incumbent retiring | 2 | 2 | 4 | |
| Vacated | |||||
| Unopposed | 2 | 2 | |||
| This election | 6 | 11 | 17 | ||
| Change from last election | |||||
| Total after this election | 14 | 19 | 33 | ||
| Change in total | 4 | 4 | |||
Seats where the margin of victory was under 10%:
| Dist. | Incumbent | This race | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Member | Party | First elected | Status | Primary | General | Result | |||||
| 01 | Republican | 1977 | Not running | New member elected. Republican hold. | |||||||
| 03 | Democratic | 2002 | Running | Incumbent re-elected | |||||||
| 05 | Democratic | 2006 | Running | New member elected. Republican gain. | |||||||
| 07 | Democratic | 2003 | Running | New member elected. Democratic hold. | |||||||
| 09 | Republican | 2002 | Running | Incumbent re-elected | |||||||
| 11 | Republican | 2002 | Running | Incumbent re-elected | |||||||
| 13 | Republican | 1994 | Running | Incumbent re-elected | |||||||
| 15 | Democratic | 1998 | Not running | New member elected. Democratic hold. | |||||||
| 17 | Republican | 1990 | Running | Incumbent re-elected | |||||||
| 19 | Republican | 1982 | Running | Incumbent re-elected | |||||||
| 21 | Democratic | 2006 | Running | New member elected. Republican gain. | |||||||
| 23 | Democratic | 2006 | Running | New member elected. Republican gain. | |||||||
| 25 | Democratic | 1986 | Running | Incumbent re-elected | |||||||
| 27 | Democratic | 1998 | Running | Incumbent re-elected | |||||||
| 29 | Democratic | 1990 | Running | New member elected. Republican gain. | |||||||
| 31 | Democratic | 2006 | Running | Incumbent re-elected | |||||||
| 33 | Republican | 2001 | Not running | New member elected. Republican hold. | |||||||