How many Republican Senate Incumbents will not win their Primary?

As of March 22, 2026, the Polymarket odds for How many Republican Senate Incumbents will not win their Primary? are: 0: 12%, 4: 8%, >4: 5%. These probabilities are derived from real-money trading and update in real time.

How many Republican Senate Incumbents will not win their Primary? is currently available on Polymarket. Check PredictMarketCap for cross-platform availability as new markets are added regularly.

Prediction market odds reflect the aggregate opinion of traders who risk real money on outcomes. The price of a share (e.g., 65¢) represents the market's implied probability (65%). Prices move as traders buy and sell based on new information, polls, and analysis.