I’m not sure who this ad is meant to help, but it’s a very effective ad against its intended target.  Maybe one of those most effective ads I’ve seen all season so far….

P.S.  Effective though the ad may be, it’s paid for by a rathery shadow ultra-conservative group called the Citizen’s United Political Victory Fund, whose origins trace back to rabid anti-Clintonism (you know, how the Clintons killed Vincent Foster and all that rubbish).  Read some background here.