U.S. Rep. Gary Miller 26111 Antonio Pky, Rancho Santa Margarita, CA92688 Congressman Gary G. Miller was elected to the U.S. House of Representatives in 1998 to represent California's 42nd…More Congressional District. Miller serves on the House Financial Services Committee and the House Transportation and Infrastructure Committee. Miller is chairman of the Building a Better America Caucus, a congressional organization promoting quality growth. He is also a member of the Republican leadership team as assistant whip. He and his wife, Cathy, have three sons and one daughter.