Revelations that Treasury secretary nominee Timothy Geithner had a housekeeper lacking the right immigration papers and failed to pay taxes on time call into question his ability to multitask but probably aren’t enough to derails his nomination, writes Marc Ambinder. The first cattle call of possible Republican 2012 presidential candidates takes place next month at the Conservative Political Action Conference in Washington, Ambinder notes. Attendees include Alaska Gov. Sarah Palin, former Massachusetts Gov. Mitt Romney, Rep. Mike Pence (Ind.), former House Speaker Newt Gingrich (Ga.) and Louisiana Gov. Bobby Jindal.