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Bill Clinton is pretty sure Hillary didn't suffer a traumatic brain injury, as Karl Rove seemed to suggest earlier this week. And at a fiscal summit Wednesday, the former president offered a couple of zingers about the whole brouhaha.

"First they said she faked her concussion, and now they say she's auditioning for a part on The Walking Dead," he said.

And later, more to the point: "If she is [suffering from brain damage], I must be in very tough shape because she's still quicker than I am."

Well played, sir.