A lot of movement since the last update on August 13th:
In Alaska, Begich's lead continues to grow. Right now, it looks like the only way he could lose is if Stevens is not on the ballot. Unfortunately, with the Republican primary on Tuesday, that is actually possible.
In Georgia, Democratic Al Martin has shot way up in the polls, and now only trails incumbent Saxby Chambliss by 6.0%.
In Louisiana, the only poll in the last month shows incumbent Democrat Mary Landrieu pulling away.
In Minnesota, Democrat Al Franken reduces his deficit from 8.3% to only 3.0%.
In New Mexico, the only poll taken this month shows Democrat Mark Udall's lead cut to 8% from around 20%.
In North Carolina, Democrat Kay Hagen has cut her deficit from 8.4% to 5.0%.
All in all, lots of good news for Democrats. The only negative spot, New Mexico, still shows Udall well ahead. If Democrats sweep the seats where they are either ahead or within single-digits, then they will hit 60 seats without Lieberman. That is a pretty hefty total, even if I don't quite accept 60 as a magic number to reach.
Also, I am now using exactly the same methodology that I use for the presidential forecast.