Poll: Koch brothers still unknown to many Americans

So why are Senate Majority Leader Harry Reid (D., Nev.) and his fellow Senate Democrats making the Kochs the centerpiece of their midterm efforts and not Mr. McConnell, who is hardly a sympathetic political figure himself?

Two reasons: 1) Democratic donors certainly know all about the Kochs and their political spending, and 2) You have to have somebody to run against – and many Democrats believe the Kochs are as good a bogeyman as Mr. Reid will get. There’s no Mitt Romney and his Bain Capital connections this time around, but Democrats hope the Kochs provide a suitable stand-in for what they are billing as Republicans’ allegiance to big businesses and special interests.