Uh, YEAH, or maybe Susan Collins, Olympia Snowe, or Christie Todd Whitman. Would have been a much different race.
That said, it's entirely possible they all said "thanks, but no thanks".
When you have guys like Christopher Buckley, Scott McClellan, and Colin Powell all endorsing the other guy, ya gotta wonder.
At least McCain's still got Joe Lieberman and Joe the Plumber...