Gallup's latest national poll of registered voters, hot off the press:

Generic Ballot Virtually Tied: Democrats 46%, Republicans 45% PRINCETON, NJ -- Gallup's generic ballot for Congress for the week of Sept. 13-19 shows a 46% Democratic and 45% Republican split in registered voters' preferences for the midterm congressional elections. It is the second week out of the last three in which the two parties have been virtually tied.

Gallup's been all over the map this cycle and this is not a poll of likely voters, so don't start preparing a victory parade just yet. However, according to their own numbers, in August the GOP had a six point advantage in interviews conducted with 7,025 respondents. So far in September, that advantage has shrunk to one point based on 5,625 surveys.

Although these numbers are by no means the final word, they offer at least some sign that Democratic fortunes may be improving. The timing actually makes sense given that President Obama kicked off the campaign on Labor Day and the GOP has been on defensive over their opposition to his tax cut plan. And don't forget that the GOP has marched off the edge of the cliff with the nomination of Christine O'Donnell in Delaware and Joe Miller in Alaska.

Gallup isn't alone in showing a narrowing generic: since August, Pollster.com shows a dramatically narrowing GOP lead (and it's even closer if you exclude Rasmussen). (Update: Since posting this, Rasmussen's latest poll caused the first graph to show a steady GOP lead. However, the generic ballot is now tied among all phone-based pollsters not named Rasmussen.) At the very least, these numbers should remind Dems (particularly those in Congress who want to punt on the tax cut issue) that they shouldn't give up now. We may not be favorites, but we're still in the game.