The question remains, however, as to whether this bump can last for the next four weeks, and whether Democrats can win enough seats to hit the 60-seat threshold.

Meanwhile, VoteVets.org is back with scathing ads targeting Republican Senators who voted against providing modern body armor to all U.S. troops in Iraq. These ads were very effective in 2006, helping to unseat Senators like George Allen in Virginia. The ad below has been updated to target Elizabeth Dole, who is now behind in her North Carolina Senate race.