In Nevada, a Mason-Dixon poll has Democratic congresswoman Dina Titus tied with challenger Joe Heck; she leads Rob Lauer by a more comfortable margin.

What’s hurting Titus? Well, M-D asked, “Representative Dina Titus voted in favor of the House Healthcare Reform bill. Do you approve or disapprove of her vote?” They found 47 percent disapprove, only 41 percent approve; among independents, 50 percent disapprove, only 38 percent approve.