Sarah Palin is going to Iowa to be the headliner at a Republican fund-raiser. In the state that will be the first to hold a contest in the 2012 presidential campaign, even if it has to do it in 2011. Her staff says this means nothing whatsoever, but let us acknowledge that Palin is on a roll. She’s got her own TV show, not counting Fox News. And she twitters! Or somebody does it for her. Hard to tell which. Her twit on the president’s Iraq speech was: “may make u want to dig out ur old Orwell books so...