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If Susan Collins is the person in Congress that has the highest return on their assets in 2025, then the market resolves to Yes.
As of March 20, 2026, the Kalshi odds for Which member of Congress will have the biggest returns this year? are: David Rouzer: 20%, Nancy Pelosi: 10%, David Kustoff: 9%, Debbie Wasserman-Schultz: 5%, Larry Bucshon: 4%. These probabilities are derived from real-money trading and update in real time.
Which member of Congress will have the biggest returns this year? is currently available on Kalshi. 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.
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