Texas Republicans have been trying to bring the state Democratic lawmakers back in order to vote on their redistricting plan.

The Republican senator, who is facing a tough primary challenge, previously asked FBI Director Kash Patel for the agency’s help in tracking down the House lawmakers.

The FBI will help Texas track down Democratic state lawmakers who left the state as part of a collective effort to thwart state Republican efforts to redraw congressional districts, Republican U.S. Senator John Cornyn said on Thursday.