As we enter the final month of the 2010 election cycle, the Senate races are beginning to fully define themselves.
We now believe that only three of the 37 campaigns can be labeled as pure toss-ups, down from five. The three are the Nevada race featuring Senate Majority Leader Harry Reid versus former state Assemblywoman Sharron Angle, the Illinois open seat campaign with state Treasurer Alexi Giannoulias and Rep. Mark Kirk (R-IL-10) doing battle, and in West Virginia where Gov. Joe Manchin (D) and businessman John Raese (R) are locked in a much closer than expected special election campaign to succeed the late Sen. Robert Byrd.
Overall, Republicans now appear positioned to win 24 of the in-cycle Senate races compared to the Democrats’ ten. This would decrease the Democrats strength in the chamber to 50 with the three undecided campaigns still on the board. Republicans would gain a net of six seats under these calculations, bringing their total to 47.
Under this model the Democrats would retain the majority, but would have no more than 53 seats and as few as 50, depending upon the resolution of the Nevada and Illinois races.
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