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.

Democratic National Committee Chair Ken Martin urged members of his party to forget their usual rulebook and go all in on partisan redistricting Tuesday. Martin made his comments in Illinois, where most of the fleeing Texas Democrats headed to prevent their state Legislature from reaching the quorum needed to consider Republicans’ proposed map that could earn them five additional seats.

California Democrats are pushing a plan to redraw the state’s congressional boundaries, a move aimed at countering a Republican redistricting effort in Texas that could help President Donald Trump’s party win more seats in Congress.