The Kalshi office erupted in screams when its, Tarek Mansour, got the call from his lawyer two months before the U.S. election. Kalshi had won. Against all odds, the small startup had beat its regulator in court,

Kalshi says the election-betting business is booming, with more than $70 million in buying and selling in those markets since the start of October.

Donald Trump has extended his lead over Kamala Harris in the betting markets with two weeks to go until the election. He appears to have the momentum in one of the closest races in history. In a further boost for the former president a new Atlanta Journal-Constitution/University of Georgia survey has the Republican (47 percent) leading Harris (43 percent) by four points in the crucial state of Georgia.