I wonder if there’s any basis to the Powell rumors other than the assumption that he will endorse the black guy?
Since Powell has already donated to McCain, he’ll have to come up with some justification for the switch - I imagine he’d blame all the “dirty campaigning” or some such nonsense.
The only basis I know of was some off-the-cuff comment by Bill Kristol, who also famously predicted that Powell would speak at the Democratic convention.