Grover Norquist is known as an anti-tax crusader, but in the coming weeks he will be just as much a pro-immigration crusader, combatting what he calls the “bitter enders” who oppose comprehensive immigration reform. Norquist says that he’s trying to counteract the effect of “a handful of radio talk-show hosts who talk loudly.” “The bitter-enders who are still responding to radio talk-show hosts from eight years ago haven’t noticed that the world has shifted from underneath them,” he says. “The people who need cover are the guys who are still voting like they were Pat Buchanan.” Advertisement Norquist’s group, Americans...