MICKEY KAUS: “McCain may or may not be blocking Heath Shuler’s immigration-enforcement bill–Shuler says yes, Brian Faughnan argues no, and McCain’s camp denies it. But shouldn’t McCain at least have to take a position on the bill, if he’s such a secure-the-borders-first man? . . . The dirty secret, of course, is that the Dem leadership isn’t blocking the bill because its unpopular with House Democrats. They’re blocking it because it’s popular with House Democrats, who’d love to have a tough-on-illegals bill to vote for before the 2008 election. “