AUSTIN, Texas (AP) — Texas Republicans on Friday warned they would escalate efforts to end a nearly weeklong holdout by Democrats if they don’t return to vote on new congressional voting maps sought by President Donald Trump in a widening battle over redistricting across the U.S.

California's governor said on Friday he will ask voters to approve a ballot measure in November redrawing the state's congressional map in a way likely to create five more Democratic seats, escalating a redistricting war with the Republican-led state of Texas and President Donald Trump.

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.