Democrat Derek Tran has defeated two-term Republican U.S. Rep. Michelle Steel in a Southern California House district that was specifically drawn to give Asian Americans a stronger voice on Capitol Hill.

U.S. Army Veteran Derek Tran has won California 45th Congressional District, unseating Rep. Michelle Streel in one of the state's most closely-watched races.

Rep. Michelle Steel, a two-term incumbent in California’s 45th congressional district, appears to have conceded to Derek Tran Wednesday afternoon after a long slog of a race that is one of the nation’s closest remaining contests yet to be called.