*This is an update from September 9th with new notes. The findings are based on rankings from major web resources, polls, discussions with the grassroots, fundraising numbers, ethical issues of for the Republican incumbent, press, and buzz about the campaign.
The 51 seats is a downgrade from the 53 in the last update, However, the number of vulnerable races remains at 30, with 21 races making up the seats that still have realistic potential. These 51 seats encompass 25 states. Each race has a Democratic candidate either vying for an open seat or challenging the incumbent. Although gas prices are going down, the War in Iraq is getting worse. The 9/11 bounce is just about over for the GOP. Things will be mighty interesting in weeks to come.
Below the flip is a list of key races in 2006.