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.

Texas House Democrats who have left the state to block a vote on redistricting were hosted by California leaders on Friday. California Gov. Gavin Newsom, House Speaker Emerita Nancy Pelosi and other prominent California Democratic leaders spoke at a press event along with the Texas lawmakers.

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.