Democrat and union leader Taylor Rehmet won a historic victory Saturday, flipping a long-held Republican Texas Senate seat.

Democrats call the upset a warning sign for the GOP, saying Rehmet's victory shows voters are rejecting Republican policies even in longtime strongholds.

Democrats are hoping for an upset in a special runoff election for a state Senate seat in Texas on Saturday. Democrat Taylor Rehmet, a local union leader, is facing off against Republican Leigh Wambsganss,

Tensions are rising in Texas’ Democratic Senate primary as state Rep. James Talarico warns against negative ads linked to U.S. Rep. Jasmine Crockett.