The Invisible Primary, 10/23

Tracking the GOP race to 2012:

Yet another book about Sarah Palin is in the works, as a former aide during the Troopergate days is penning an expose on the former governor, though he doesn't have a publisher; President Obama leads major GOP hopefuls in prospective 2012 matchups, according to a new Public Policy Polling survey, though Mike Huckabee performs the best, trailing the president 43 percent to 47 percent; Rick Santorum published an op-ed in the Philadelphia Inquirer criticizing President Obama's policies toward Iran; Tim Pawlenty raised money for his Freedom First PAC at the home of a lobbyist in Washington, DC last night, and he has another fundraiser lined up for Nov. 4 in Minnesota; and Newt Gingrich defended his endorsement of New York congressional candidate Dede Scozzafava.