The 2018 Wisconsin Senate elections were held on Tuesday, November 6, 2018, at the Fall general election in

Wisconsin Wisconsin ( ) is a U.S. state, state in the Great Lakes region, Great Lakes region of the Upper Midwest of the United States. It borders Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake Michigan to the east, Michig ...

. Seventeen of the 33 seats in the

Wisconsin Senate The Wisconsin Senate is the upper house of the Wisconsin State Legislature. Together with the Wisconsin State Assembly they constitute the legislative branch of the state of Wisconsin. The powers of the Wisconsin Senate are modeled after those ...

were up for election—the odd-numbered districts. Before the election, Republicans held 18 seats and Democrats held 15 seats. Of the seats up for election, 10 were held by Republicans and seven were held by Democrats. The

primary election Primary elections or primaries are elections held to determine which candidates will run in an upcoming general election. In a partisan primary, a political party selects a candidate. Depending on the state and/or party, there may be an "open pr ...

was held on August 14, 2018. Republicans maintained control of the Senate, flipping one Democratic-held seat to enter the 104th Wisconsin Legislature with 19 of 33 Senate seats.

Results summary

Statewide results of the 2018 Wisconsin State Senate election:

Close races

Seats where the margin of victory was under 10%: # # # # # # (gain)

Special elections

Two special elections were held during 2018 for vacancies in the state Senate. Democrats won both special elections, for a net gain of two seats.

Outgoing incumbents

Retiring

* Terry Moulton (R– Chippewa Falls), representing District 23 since

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, did not run for re-election.

Seeking other office

* Kathleen Vinehout (D–

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), representing District 31 since

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, ran for governor of Wisconsin, but lost in the primary. * Leah Vukmir (R– Brookfield), representing District 5 since

, ran for United States Senate, but lost the general election.

Predictions

Candidates and results

Results of the 2018 Wisconsin State Senate election by district:

Notes

References

{{2018 United States elections

Wisconsin State Senate The Wisconsin Senate is the upper house of the Wisconsin State Legislature. Together with the Wisconsin State Assembly they constitute the legislative branch of the state of Wisconsin. The powers of the Wisconsin Senate are modeled after those o ...

State Senate In the United States, the state legislature is the legislative branch in each of the 50 U.S. states. A legislature generally performs state duties for a state in the same way that the United States Congress performs national duties at ...

2018 Events January * January 1 – Bulgaria takes over the Presidency of the Council of the European Union, after the Estonian presidency. * January 4 – SPLM-IO rebels loyal to Chan Garang Lual start a raid against Juba, capital of ...