WESTCHESTER (CBSLA.com) — Democratic State Senator Ted Lieu was leading Tuesday in his bid to fill the 33rd Congressional District seat left open by Henry Waxman, who is expected to retire after 40 years.

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Lieu held 53 percent of the votes with 6 percent of precincts reporting as of 10 p.m. His contender, Republican Elan Carr, held 47 percent of the vote, according to early reports.

Carr is a deputy District Attorney for Los Angeles County. The race marked Carr’s first run at an elected office.

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Lieu arrived at his headquarters in Westchester just after 9 p.m. and was expected to address supporters.

“I’m going to do what I did in the state legislature, which is work on a bipartisan basis with Democrats and Republicans to fix problems, to grow the economy, and to create jobs,” said Lieu, if elected.

District 33 is comprised of the South Bay to Malibu and the west-side to Mid-City.

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About 44 percent of registered voters in the region are considered Democrat, reported KCAL9’s Serene Branson.