Kerry has convinced himself that he won the Democrat nomination.
Kerry actually 'got' it by default after the Dean meltdown. Kerry was barely holding third place in many states. Even after most dropped out and Kerry was the lone significant Dem candidate, he was only garnering 2/3 of the Dem primary votes. Fully 1/3 were voting against him in many remaining primaries; it was ABK (Anyone But Kerry).
[The DNC probably wish they had heeded that 1/3 and gone with ABK as their candidate of choice.]
Yeah, at the time, I told a Democrat friend of mine that his Party was going to rue the day they picked Kerry. He couldn't understand that. I told him that Kerry had too much baggage, but he blew it off. Since then, I happily send him periodic updates on exposure of said baggage. I hope I don't lose friend!