In 2000, Archer retired from Congress, leading to a highly competitive Republican primary - traditionally the real contest in the heavily Republican district. In the ensuing runoff, State Representative John Culberson, who represented much of the congressional district's western portion, defeated opponent Peter Wareing to win the Republican nomination. By 2002, the district was further reduced in size, now taking in the west side of Houston as well as much of the unincorporated vicinity of the Barker and Addicks reservoirs in west Houston.