Democratic National Committee Chair Ken Martin urged members of his party to forget their usual rulebook and go all in on partisan redistricting Tuesday.

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.

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.