Two years ago, I wrote an article suggesting that we were entering a period of Democratic Party ascendency in US politics -- a prescient piece of punditry that I like to remind people of as often as possible. In it I wrote about the likelihood of big gains in the US Senate in '08. As a sidebar, I ranked the GOP-held seats that I considered most likely to be taken by Democrats in '08. With the lone exception of Lamar Alexander of Tenessee (who I chose over Mitch McConnell of Kentucky for the 10th spot), every one of those seats is indeed threatening to turn blue.
And there are a couple of others I didn't even see coming at the time: Ted Stevens of Alaska got indicted for corruption; and Trent Lott of Mississippi resigned. Both seats are toss-ups. McConnell is also in trouble.