Texas Attorney General Ken Paxton is asking a California court to recognize civil warrants issued in Texas calling for the arrest and return of House Democrats that left the state to break quorum and prevent a vote on redrawn congressional maps.

Texas has been the epicenter of Trump’s push to gerrymander congressional maps to shore up Republicans’ narrow House majority before next year.

As Texas Republicans move ahead with redistricting to protect or even expand the GOP’s slim majority in the US House, Democratic-run states, led by California, are pushing forward with their own efforts to draw new maps and add Democratic seats.