National: Iraq and the midterm election

From the Knoxville News Sentinel, "Mid-terms and war rarely work for sitting party", By BILL TOLAND:

So will American history stay the course? Will the Iraq war define this midterm election?
It seems so, and polls on these specific questions suggest that the Iraq war is issue No. 1 for Democratic and independent voters, the latter intending to support Democratic candidates over Republicans by a margin of 2 to 1. By the same margin, those independents say that the Iraq war is not worth the blood....