South Dakota Senate Fundraising
Incumbent Mike Rounds is up for election in South Dakota's Senate in 2026. This race is rated as . We estimate that $9.70M has been spent on this race over the last two years. Republicans have outspent Independents by $7.34M over that time period, per our estimates.
Cumulative Spending by Party
Note: Recent data is often incomplete due to lags between spending and disclosure
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John Thune
Quarterly Committee Fundraising Amount: $681,975% Individual: 68.89%Committee Cash on Hand: $17,713,892 -
Mike Rounds
Quarterly Committee Fundraising Amount: $530,257% Individual: 42.04%Committee Cash on Hand: $2,736,664 -
Brian Bengs
Quarterly Committee Fundraising Amount: $116,031% Individual: 100.00%Committee Cash on Hand: $51,406
Outside Spending
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