Christopher Buckley ’75, co-founder of the Yale Daily News magazine and son of conservative icon William F. Buckley Jr. ’50, resigned Saturday from his position as a columnist at National Review, the influential magazine his father founded five years after graduating from Yale. The younger Buckley offered up his post to National Review editor Rich Lowry after Buckley’s Thursday endorsement of Democratic presidential nominee Sen. Barack Obama in an online news magazine elicited a wave of outrage from National Review readers. “By Friday, I was Judas,” said Buckley in a telephone interview with the News on Tuesday night. “I thought...