After admission to the Virginia bar in 1875, Rixey had a private legal practice in
Culpeper, Virginia. He was elected the county's Commonwealth Attorney (prosecutor) in 1879 and served in that position until 1891. In 1896,
Democratic Congressman
Elisha E. Meredith retired to his legal practice, and voters in
Virginia's 8th congressional district elected Rixey to the
55th Congress. Re-elected five times, Rixey served from March 4, 1897, until his death in
Washington, D.C., on February 8, 1907 (before the close of the
59th Congress). Although he had been re-elected to the
60th Congress, he died before beginning that term. Beginning in his third Congressional term, Rixey proposed to place all Civil War veterans in the same class with respect to federal and state soldiers' homes. He also hosted President
Theodore Roosevelt at Beauregard during his visit to Culpeper county and
Cedar Run battlefield in 1902. Furthermore, a troop of Culpeper County veterans from the Spanish–American War marched at Roosevelt's inauguration. Rixey also introduced bills to create
Manassas Battlefield Park, as advocated by constituents Edmund Berkeley and
George Carr Round, although none passed until decades after his unexpectedly early death. ==Death and legacy==