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Will the Democrats win the South Carolina Senate race in 2026? Predictions

The market saysProbably not20% YES
YES 20%
80% NO

A YES share pays out if this happens and NO pays out if it doesn’t — so the 20% price is just the market’s implied chance of YES. How YES/NO contracts work →

Platform
Polymarket
Volume
$47,760 volume
Updated
1 month ago

South Carolina’s 2026 Senate race is a long shot on Polymarket, with Democratic odds at 20%. The market has climbed up 7 points, a modest uptick that suggests either shifting fundamentals or fresh money testing the thesis. At $48k, liquidity is thin enough that small positions can move the dial.

The price reflects political gravity: South Carolina has voted Republican in the last five statewide Senate contests, and the state has drifted redder over the past decade. A Democratic flip would require either an exceptionally weak GOP nominee, a significant Democratic recruitment and funding advantage, or a major shift in the electorate’s alignment. Absent a named candidate or a sharp change in conditions, the market is pricing in what the recent history suggests—that the seat is Republicans’ to lose.

What moves this further? Candidate announcements and early polling will matter most. If Democrats land a high-profile or well-funded nominee, or if the Republican primary fractures, that calculus changes. For now the price is a live read on long odds, not a final word. It settles on the deadline and trades on Polymarket.

FAQ

What does a 20% price mean?

It is the market-implied probability. A 20% YES price means traders collectively judge the event about 20% likely.

How does this market resolve?

This market will resolve according to the winner of the 2026 midterm South Carolina U.S. Senate election, inclusive of any run-offs. A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Repu

Where can I trade it?

This market is listed on Polymarket. Prediction markets carry real financial risk and may not be available in every state.

Are political prediction markets legal in the US?

On CFTC-regulated exchanges, political event contracts are available to traders 18+ in most states, though the picture is contested and varies by state. See our guide on whether prediction markets are legal.

How are the odds set?

By traders, not a bookmaker. The price is the live consensus of everyone buying and selling, expressed as a probability between 1% and 99%.

Where can I trade politics markets?

Kalshi and Polymarket carry the deepest US political markets — compare them in our Kalshi and Polymarket reviews.

What is a prediction market?

A prediction market lets you trade contracts on whether a real-world event will happen. The live price moves with supply and demand and reads as the implied probability. Read more →

How do the odds work?

Every price between 1¢ and 99¢ is the implied chance of YES. A contract settles at $1 if it resolves yes and $0 if it does not. Read more →

Trade this on Polymarket →

Prediction market contracts carry real financial risk and can resolve to zero. 18+.