Wisconsin Representative Bryan Steil introduced the Stop Lawmakers from Predicting Act, with penalties of $2,000 or 10% of prohibited bets. The bill could bar members of Congress, their spouses, and dependent children from policy-aligned event contracts on platforms like Kalshi and Polymarket. The bill would take effect 180 days after enactment if Congress passes it and the president signs it, but it did not extend to White House officials.