Republican · SD
Mike Rounds
As of October 5, 2026, prediction markets give Mike Rounds (Republican) a 93% chance of winning the 2026 South Dakota Senate race (Kalshi 92%, Polymarket 94%).
Odds in every market
| Market | Chance | Kalshi | Polymarket | 24h |
|---|---|---|---|---|
| 2026 South Dakota Senate race | 93% | 92% | 94% | ▲ 1¢ |
Chance = this candidate's share of each market's prices, averaged across the exchanges that list it.
Campaign money
- Raised
- $3.2M
- Spent
- $2.3M
- Cash on hand
- $2.7M
- Outside groups for
- $817K
- Outside groups against
- $0
Through June 30, 2026. $1.3M from individuals, $1.4M from PACs. FEC filings for Mike Rounds →
Polls
In the 2026 South Dakota Senate race, the Parlay polling average has Mike Rounds at 43% against Julian Beaudion at 18%, from 1 polls (newest ended 2026-05-30).
Social buzz
14K interactions with posts about Mike Rounds in the last 24 hours from 50 people; 60% of posts read as positive, up 366% on last week.
- Promise KEPT. Trump ordered the Department of Education shut down as far as the law allows. Staff cut nearly in HALF. Over a billion dollars in contracts gone. Now Sen. Mike Rounds has a bill to eliminate it and send t Mila Joy · tweet
- Mike Rounds attack ads on me are paid for by a billionaire who appears hundreds of times in the Epstein files and a pro-AI data center group. Ask yourselves who he really represents. Brian Bengs · tweet
- "Mike Rounds refuses to vote for -- or against -- the War" Independent challenger Brian Bengs is trying to pull an upset in U.S. Senate race in South Dakota Bengs says new polls show the race is within reach, amid a pot Scott MacFarlane · tweet
Social data from LunarCrush. Posts are what people are saying, not verified facts.
Running against
Market prices from Kalshi and Polymarket, collected every 10 minutes. Research, not betting advice.
