Looks as though the
anger on the left is going to be equally matched by the
fear on the right. According to noted Fox News analyst Fred Barnes, the deliema facing Republicans up for reelection in 08 is that to get the nomination they must appeal to the "core" conservative right, but the very position(s) they'd have to take to appeal to the core would lose them the general election. Seems their fear is not of the left but of the very angry "middle."
Which is why many Republicans up for reelection are both trying to hug "W" and also say they never heard of him.