from PolicticalWire
Sources close to Sen. George Voinovich (R-OH) tell CNN he will announce Monday afternoon he is retiring from the Senate.
Voinovich plans to serve out his term, which expires in 2010.
He will be the fourth Republican senator to announce he will not run for re-election in 2010, joining Sen. Kit Bond (R-MO), Sen. Mel Martinez (R-FL) and Sen. Sam Brownback (R-KS).
My guess is the GOP isn't going to be putting much in to defeating Bennet as they now have 4 seats to defend in open elections. Ow!