"While I was flipping through the autobiography, a woman approached the booth. Catherine Sumner, it turned out, was part of GOProud, a group of openly gay Republicans and conservatives that for the first time is taking part in CPAC. “Is this your flyer?” Sumner demanded, waving the white and green pamphlet. Thus launched a debate about gays in the military that pretty much ended when the booth attendee told her that homosexuality is a sin and she’s going to hell. “It’s insulting,” Sumner, 31, who edits a military magazine, said turning away. “Across the board the reaction to GOProud’s presence...