Senator Evan Bayh bails out

After judging his seat to be secure against any challengers, Senator Evan Bayh has elected NOT to run for re-election, anyway. There is considerable speculation about why Bayh - who was on the short list to serve as Barack Obama's Vice President - has decided to bow out. It is unlikely to be related to the anticipated Congressional housecleaning in 2010. But it could well have to do with a presidential run against Obama in the Democratic primaries in 2012.