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U.S. senators ban themselves from prediction markets trading

The unanimous rule change takes effect immediately and follows rising concerns about insider trading, including a recent Army soldier indictment tied to Polymarket.

  • On Thursday, The Minnesota Senate passed a bill 56-10 to ban most prediction market wagers on platforms like Kalshi and Polymarket, making bets on sports, weather, and war explicitly illegal.
  • Sen. Matt Klein, DFL-Mendota Heights, originally authored the bill after being banned for five years for placing a $50 bet on himself in the primary race, later apologizing to The Senate for the incident.
  • Data cited by Sen. Jordan Rasmusson, R-Fergus Falls, showed 69% of Polymarket users lost money, with proponents arguing the platforms exploit federal loopholes to facilitate insider trading and unregulated gambling.
  • Tribal leaders warned that prediction markets could divert revenue from casinos that have "lifted our tribes out of poverty," while lawmakers raised concerns about potential conflicts with CFTC regulations.
  • The bill's future remains uncertain in The House, where House GOP leaders hesitate to advance it before federal regulators act, as the federal government sues other states over similar bans.
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U.S. senators won't be weighing in on prediction markets bets after banning themselves

The Senate agreed unanimously to revise its rules to ban members and their staffs from wagers on prediction markets platforms.

·Manila, Philippines (the)
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abc10 Sacramento broke the news in Sacramento, United States on Thursday, April 30, 2026.
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