Sarah Palin resigned from the governorship of Alaska today, no doubt to better position herself for a run at national office in 2012 or beyond. Finshing her term could only have complicated Palin's ambitions: she has been increasingly unpopular in "The Last Frontier" lately and it's been tricky for her to balance her obligations to the state with her desire to cultivate a following among GOP true believers in the lower 48. We haven't heard the last from Caribou Barbie, I'm sure!