“Sheldon Adelson, the Las Vegas billionaire who has been the biggest backer to a group supporting Newt Gingrich, said this week that Mr. Gingrich had reached ‘the end of his line’ in his bid for the presidency.” —New York Times   So Newt’s coming closer to facing defeat? His main sugar daddy’s no longer so sweet. And Newt never was: why, when he had the power Of all of that sugar, he still sounded sour.