Add Yahoo as a preferred source to see more of our stories on Google. Polymarket advertisements predict a victory for Zohran Mamdani in the New York City mayoral election in November 2025. (Olga ...

As the U.S. heads toward November’s midterm elections, a growing number of investors and political observers are turning to prediction markets like Kalshi and Polymarket to gauge who might win.

Sens. Jeff Merkley, D-Ore., Elizabeth Warren, D-Mass., and Rep. Jamie Raskin, D-Md., on Thursday introduced legislation to ban prediction market bets on sports, war, elections and government actions.

Arrests for betting on the U.S. military operation that removed Venezuelan leader Nicolás Maduro. Death threats from gamblers to a journalist reporting on an Iranian missile attack on Israel. Fears of ...

As Spencer Pratt fell behind in the Los Angeles mayoral primary, an unexpected group began claiming election fraud: people tracking the Republican's success on prediction markets, the increasingly ...