Forget about Sarah Palin as the Republican presidential candidate in 2012 and probably ever. She may have no interest in seeking the GOP nomination. But if she does, her chances of winning the nomination have been minimized by her decision to resign as governor of Alaska. She’s knocked out one of three legs of the presidential stool and a second one is wobbly. I say this reluctantly because Palin, in my view, is the most exciting Republican figure to emerge in decades. She mesmerizes crowds in a way that no other Republican leader can come close to matching. She has what can’t be taught–real charisma.