The CNBC Republican debate started with a simple question: What is your biggest weakness, and what are you doing to fix it?
The answers ranged from fuddled to self-complimentary to dodgy.
John Kasich ignored the question and ranted about other candidates. Mike Huckabee said he had no weakness. Marco Rubio said he's too optimistic, and Donald Trump said he's too nice.
The closest thing to an answer: Jeb Bush said he's too impatient, but he didn't explain how he's fixing it. Ben Carson also seemed to admit that he doesn't see himself in the White House, which seems like a particularly large weakness for someone running for president.