The Latest: 3 races too close to call in Southern California

Associated Press
Katie Hill, a Democratic Party candidate from California's 25th congressional district speak waves at supporters during an election watch party Tuesday, Nov. 6, 2018, in Santa Clarita, Calif. Hill is running against Republican incumbent Steve Knight. (AP Photo/Marcio Jose Sanchez)

LOS ANGELES (AP) — The Latest on U.S. House races in California (all times local):

7 p.m.

Three U.S. House races in the one-time Republican stronghold of Orange County, California, remain too close to call.

Tens of thousands of votes remain uncounted in those districts, where the outcome remains in doubt three days after the election.

All the undecided contests Friday are in GOP-held districts targeted by Democrats.

In Orange County, Democrat Harley Rouda is holding a nearly 4-point edge over 15-term Republican Rep. Dana Rohrabacher in the 48th District.

Republican Rep. Mimi Walters was clinging to a 1-point advantage in her race in the 45th District against Democrat Katie Porter, while Republican Young Kim was leading in the 39th District in her contest against Democrat Gil Cisneros.

Meanwhile, in the Central Valley's 10th District, Democrat Josh Harder was holding a slim edge over Rep. Jeff Denham.

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4:30 p.m.

Democrat Katie Hill has captured the last Republican-held U.S. House seat anchored in Los Angeles County.

Hill ousted Republican Rep. Steve Knight, who was seeking a third term in the 25th District that cuts through suburbs, horse ranches and high desert in northern Los Angeles County and a slice of Ventura County.

Knight conceded the race earlier this week. Hill maintained her election night lead after further vote counts were released Friday.

The victory will pad the Democratic advantage in the House next year.

A political newcomer, Hill has stressed her centrist politics. She's a gun owner and her Republican father is a police officer who had never voted for a Democrat before her primary. Her mother, a Democrat, is a nurse.