He's partially right and partially wrong.
Q: Who would win in a televised Kerry-Bush debate?
RN: Kerry on debating points, but Bush on personality, optimism and all that stuff that Kennedy and Reagan had down pat. But Edwards would lose to Cheney -- against a steady hand, there's such a thing as too much charisma.
As someone with entirely too much experience with debates, I concur that Bush will come off well against Kerry, which is one very important reason I'm so leery of Kerry getting the nomination.
But I think a well-prepped Edwards will rip Cheney a new asshole. Sorry, Bill. "Against a steady hand" -- please. There's too much stuff like this to talk about (via Billmon). [UPDATE: See also Arianna.]