The Senate's In Play - Cook Report

National Journal Magazine - The Senate's In Play: "Of the 18 competitive Senate races (this number doesn't include Vitter, Burr, or the seat in West Virginia), Republicans would need to win 16 to secure a majority, and certainly logic suggests that the odds of achieving this would be long in any remotely normal year. But the operative term is "in a normal year," which this is most certainly not"