Another Rove Conspiracy?

Jim Geraghty observes:

What periodically baffles me is the fact that an increasingly influential, vocal-as-all-hell faction of the Democratic Party has looked at their current circumstances – minority in the House, minority in the Senate, shut out of the White House until Jan. 20, 2009, 31 red states, etc. – and decided that their biggest problem… the figure who is most deserving of their ire, whose defeat is the highest priority is… Joe Lieberman.