Palin is admirable and wonderful in many ways. I look forward to big contributions from her as a conservative force on the national scene over the next 30 years. But her abrupt exit as Alaska governor fails the backbone test. Whether as a family move or a political gambit, it was poorly prepared and poorly presented. The seriousness, steadiness, toughness, and clarity we expect from national leaders were not evident. Gov. Palin seems suddenly cavalier toward the trust she undertook with her state in 2006 and with the nation in 2008. For the time being, in my book, she's much less a potential president. But 2012 and 2016 are a long time away. Backbone Americans will watch with keen interest to see where Sarah goes from here.