 He would dispatch another challenger in the 1970 Democratic primary by 2-to-1 and faced no Republican in the general election.In 1972, former Hagan staffer and assistant Ronald 'Bo' Ginn would aggressively challenge his former boss in a spirited three-man primary.Holding Hagan to a 43-39% margin in the first round, Ginn would defeat Hagan by a margin of 55-45% in the runoff.