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.

California Democrats are pursuing a plan to redraw congressional maps amid the efforts in Texas to redistrict, which could hand the GOP five more House seats. David Becker, the executive director at the Center for Election Innovation and Research,