Wisconsin State Senate
District 15
Candidates
Election Results
Race overview
State Sen. Mark Spreitzer, D-Beloit, faces Republican Johnstown Supervisor Scott Fleming and process server and third-party candidate Christopher Dean, of Center Township, in the general election. None of the candidates faced primary opponents. Spreitzer was elected to the seat in 2022.
Campaign funds raised
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Data reflects monetary and in-kind contributions reported to the Wisconsin Ethics Commission with 2026 transaction dates. Personal loans are excluded. Data was retrieved on Aug. 4, 2026.What does this position do?
State senators write, review and vote on legislation that becomes state law if approved by the Legislature and signed by the governor.
They vet some political appointees made by the governor, including cabinet secretaries.
Senators serve on one or more of 20 committees that take public testimony on bills and review legislation.
They work on a state budget every other year to determine how tens of billions of dollars are spent.
Senators also oversee a staff that helps provide constituent services. Each member of the state Senate represents roughly 175,000 people.