From a bit too optimistic reader:

…I agree with you once again, Jonah; I sure hope this isn’t a trend.
I am a moderate Democrat at heart (W.’s disastrous presidency and Iraq has
driven me to the left, but I’m sure I’ll come back to the center when he’s
gone and we’re out of Iraq). Above all, I want to win in 08. And I think
that Bayh offered us our best chance to do that. I don’t see any other
Democrat in the current crop turning more red states blue than Bayh does:
Indiana, Ohio, Colorado, Iowa, Missouri, and possibly Florida, Virginia, and
Arkansas would all be pick-up opportunities. His blandness would be an
asset in the Midwest. And what was blue in 2004 will almost certainly be
blue in 2008 no matter who the Democrats go with. Put Obama on the bottom
of the ticket and you guys wouldn’t have a chance. In fact, it would be
over before it started, and the conversation would quickly turn to Obama
running in 2016 as an unstoppable, 55-year old with two terms of VP
experience behind him. I think we’d be talking about 16 years of Democratic
hegemony with potentially large majorities in both houses – Bayh/Obama would
have very long coattails, and I think that the Dems, barring a major
screwup, are looking good already in 08. Dare to dream.
But I’m hearing that Warner might be reconsidering…