Traders on the polymarket.com platform increasingly rate the likelihood that the Democrats will win the US Senate, giving them about a 74% chance of gaining control. Markets favor Democrats in Michigan, Maine, Ohio, Texas, Alaska and Kansas, which has not elected a Democratic senator since 1932. In Iowa, the chances are roughly equal (about 50%). Democrats need to win just four more seats to secure a majority.

Traders on the polymarket.com platform increasingly rate the likelihood that the Democrats will win the US Senate, giving them about a 74% chance of gaining control. Markets favor Democrats in Michigan, Maine, Ohio, Texas, Alaska and Kansas, which has not elected a Democratic senator since 1932. In Iowa, the chances are roughly equal (about 50%). Democrats need to win just four more seats to secure a majority.