Claim: Incumbent Democratic Congressman  John J. Riley of the 2nd congressional district, in office since 1951, with 13,677 votes (100%) was unopposed in his bid for re-election in the 1958 United States House of Representatives elections in South Carolina.
Evidence: Incumbent Democratic Congressman John J. Riley of the 2nd congressional district, in office since 1951, defeated E.B. Linder in the Democratic primary and was unopposed in the general election. 13,677 John J. Riley (incumbent) 100.0 South Carolina's 2nd congressional district election results, 1958