Tracking the GOP race to 2012

Gov. Mark Sanford has gone missing, and his staff won't say where he is; John Ensign's approval ratings dropped after admitting to an affair with an ex-staffer, but he is still more popular than Harry Reid; Mike Huckabee will travel to Alabama tomorrow to raise money for a congressional candidate; he'll also keynote an event for radio trade publication Radio Ink in December; and Haley Barbour will travel to Virginia, New Hampshire, and Iowa this week for candidate and party events.