No not really.

What happened this time can't really be applied generally. I am not sure they will be rewarded for the momentum. The economic woes have been nearly without precedent. What the Democrats have been hoping (or at least saying that they have been hoping) is that Republicans in control of one or both houses that Republicans will be forced to do something other than obstruct and thus for the next two years will share responsibility for the bad economy. In 2012 Obama will be facing a Republican party, split by the Tea Party base, alienating moderates and probably nominating some semi-intelligent, slogan spewing Fox employed Yahoo who will have to scratch an claw for every vote beyond the 23% of the country that watches Fox "News" and believes anything that station puts forth.