Just as Democratic U.S. Senate candidate Colin Allred was holding a town hall near the Mexican border as part of an “unrig Texas” campaign tour, the state’s Democratic fundraising powerhouse Beto O’Rourke rallied support in Austin for lawmakers who left the state to delay a redistricting plan led by President Donald Trump.

The Texas Senate could vote Friday to approve new congressional maps drawn to help Republicans win as many as five more House seats in next year’s midterm elections.

State Sen. Carol Alvarado of Houston said she planned to hold the floor as long as possible ahead of a final vote.