Texas governor says he wants to oust and replace Democratic lawmakers who fled the state, but that might be a challenge and take some time, the state’s GOP AG says.

Texas Governor Greg Abbott threatened on Monday to arrest Democratic lawmakers who are using their collective absence from the state capital to prevent the legislature from adopting a Republican-backed plan for redrawing Texas congressional districts.

Redistricting typically occurs once per decade in each state following the census. But Texas Republicans broke that tradition last week by proposing a new map mid-decade after Trump pushed them to redraw the state’s congressional districts so that the GOP would be more likely to win more seats in the midterm elections next year.