Even after being singled out by the Senate for condemnation, MoveOn.org isn't slowing down. The group is spending $100,000 for a television ad targeting Kentucky Senator Mitch McConnell for voting against Senator Jim Webb's amendment yesterday to require troops to stay home as long for periods equal to the amount of time they spend in combat zones.

The question: After their poorly-received decision to take on General David Petraeus, are MoveOn's attacks effective anymore, or do they just boost the prospects of candidates they go after?

We'll find out next week. The next Zogby poll, which goes in the field on Monday, will test the group's favorability rating.