Another one bites the dust

Now comes Mark Sanford, Republican governor of South Carolina, who disappears for days allegedly to "clear his head" and hike the Appalachian Trail. Turns out he's in Argentina with his lover. This is bizarre and erratic behavior at best.

Who'd-a thunk anything could make Nevada Gov. Jim Gibbons divorce escapades and Sen. John Ensign's neighborly affair look downright pedestrian.