The plan increases the share of Hispanic voters in three of the five districts targeted by the GOP, banking that enough will turn out and vote for Republicans without Donald Trump on the ballot.

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.

A Texas House panel on Saturday advanced a draft congressional map aimed at adding five new Republican districts next year over protests from Democrats that the proposal would suppress the votes of people of color.