I Tend to Describe this as "Unwarranted Optimism"

The Shrill One (tm – Brad DeLong) as Optimist:

The result, then, will be high unemployment leading into the 2010 elections, and corresponding Democratic losses. These losses will be worse because Obama, by pursuing a uniformly pro-banker policy without even a gesture to popular anger over the bailouts, has ceded populist energy to the right and demoralized the movement that brought him to power.

Despite all this, the midterms probably won’t give Republicans the majority in the House. But the losses will be big enough to deny Obama a working majority for any major initiatives in the rest of his first term. (My guess is that he’ll be reelected thanks to the true awfulness of the Republican nominee). Since Republicans are dead set against any of the things I think could help pull the economy out of its rut, this means more economic stagnation.

Can anyone point to any evidence of either of the bolded statements being likely to be true? (I’ll pre-emptively conceed that the Republican nominee may well be awful—probably a 75% probability, since the current Best Case Scenario is Mittens. But adjust you expectations by what you would have expected the Democratic Party nominee to be in late 2005.