Should Clinton Have Vouched For Obama's C-in-C Readiness?

There's a debate about whether Hillary should have vouched for Obama's commander in chief credentials.

Here is why, according to an aide, she did not.

Had she done that, all the media would focus on is the disparity between her convention praise and her primary criticism. And she would not have sounded genuine. It would have been contrived.

Tonight, Sen. Joe Biden's goal is to vouch for Obama as a commander in chief. That's going to be tough, given Biden's past insistence that Obama wasn't ready.

Biden has two other jobs tonight. One -- Democrats are salivating for a tough anti-McCain speech, and Biden will give it to them. But he has a very compelling life story, one that is attractive to working class whites... he needs to find a way to merge those themes.