I don’t think cares what happens this November...
He’s a committed leftist, and doesn’t care what happens in Nov. 2010. He will see himself as a latter-day Harry Truman if Republicans win Congress, and will campaign against the “do-nothing” Republican congress when he runs for re-election in 2012.
He’s had lots of trouble with a Democrat congress. If he had a Republican congress to use as a foil, he might win re-election campaigning against the gridlock that we would see if Republicans win congress.