Polymarket Trader Could Collect $3M if Republicans Defy Midterm Odds

A Polymarket account created in August bet about $183,000 on Monday that Republicans will keep both the Senate and the House, at odds of about 6%. If they do, the account’s midterm bets would pay out about $3 million. A Polymarket account trading as colombiaman bought 2,895,931 shares on a Republican sweep of Congress on Monday, betting that Republicans will hold both the Senate and the House in Tuesday’s midterm elections. The shares cost about $176,200 at an average of 6.08 cents, plus about $6,600 in fees, in Polymarket’s balance-of-power market for the 2026 midterms .