There's been a lot of analysis of the Joe Biden-Sarah Palin debate. I think that any honest assessment of the debate reveals that Sarah Palin lost this debate. She lost in a number of ways. She lost the debate on substance. She lost the debate on style. Finally, she didn't answer most of the questions. Gwen Ifill states, "She blew me off."

From Politico:

On at least 10 occasions, Palin gave answers that were nonspecific, completely generic, pivoted away from the question at hand, or simply ignored it: on global warming, an Iraq exit strategy, Iran and Pakistan, Iranian diplomacy, Israel-Palestine (and a follow-up), the nuclear trigger, interventionism, Cheney's vice presidency and her own greatest weakness.

If you really don't know that much, then your best defense is smiling and repeating talking points. Sarah Palin has proven that even after a lot of preparation, she doesn't know much.