Texas House Democrats who fled their state to stall a Republican redistricting effort returned on Monday, ending their 15-day holdout.

The proposed congressional districts are fueling a redistricting battle at the Texas Capitol and could have national consequences. A bipartisan war is already brewing across the U.S.

Republicans can move ahead with redrawing Texas’ congressional districts now that Democratic lawmakers have returned to the state. Efforts to thwart President Donald Trump’s push to tilt the political map for next year’s midterm elections in his favor shifted to California.