Barreto said that Republicans did not see the same gains with Latino voters in 2018, when Trump was not on the ballot, and Democratic Senate candidate Beto O'Rourke lost to Sen. Ted Cruz by less than 3 percentage points – the tightest Senate margin in Texas in decades.

Despite protests from Democrats, a Texas House committee advanced a draft congressional map Saturday that could add five new Republican districts next year.

The full Texas House will now vote next week on a map drawn to flip five House districts to the G.O.P., but Democrats might walk out to deny Republicans a quorum.