Ballots cast to approve Prop. 50 outnumbered "no" votes in Fresno, Imperial, Lake, Merced, Riverside, San Bernardino and San Joaquin counties, each of which were carried by Mr. Trump in the last presidential election.

More than 6.3 million Californians — 28% of the state’s 23 million registered voters — had cast ballots as of Monday, according to a voting tracker run by Democratic redistricting expert Paul Mitchell. Ballots submitted by Democrats are outpacing Republicans, though GOP voters are expected to be more likely to vote in person on Election Day.

California voters approved Proposition 50 on Tuesday, Nov. 4, in a statewide special election that was announced less than three months prior. And in about a year, Californians will be back at the polls.

Voters in California have approved Proposition 50, a ballot proposal to adopt a new congressional map that redraws five districts to be more Democratic-leaning, ABC News projects.

Election Day for California’s special election is Tuesday, Nov. 4.Voters across the state are deciding whether to approve new congressional maps with Proposition 50, but there are also several local races on the ballot in Northern California counties.

Did Prop. 50 pass in California? Who won the governor race in New Jersey? See results and analysis as Democrats sweep off-year elections.

Passing the proposition could essentially negate the five new GOP-leaning congressional districts Texas adopted earlier this year.

The White House said its working on an executive order “to strengthen our elections in this country and to ensure there cannot be blatant fraud.”

Texas officials preparing for elections under new congressional maps must quickly reverse course because of a federal court order blocking the use of the maps.