On Wednesday’s “Hannity” on the Fox News Channel, commentator Ann Coulter doubled down on the headline of her latest column by calling Florida Republican Sen. Marco Rubio the Jack Kevorkian of the GOP. Asked by host Sean Hannity whether she was for real in her article “If the GOP is this stupid, it deserves to die,” the conservative firebrand proudly owned the column. “Yes, that’s the headline of my excellent column this week, which I highly recommend everyone read,” Coulter said. “It’s just — you talk about Chuck Schumer. Well, Chuck Schumer is playing Marco Rubio, the Jack Kevorkian of...