OK, the rabid right may carry the day for Republicans in 2010. But 2012? The polling numbers this year show the GOP doing even worse with moderates than in 2008. Not exactly a surprise.
The fact that Republicans are winning this election without showing much appeal to moderates is another reminder that the main reason for the pending GOP onslaught is the disengagement of Democratic voters. Conservatives will make up a much larger portion of the electorate this year than they did in 2008 and that's put Republicans in a position to make big gains without even having to develop a message that's appealing to the center.
That's the reason why this year's Republican resurgence may prove to be short lived and why much of what the party gains this year could be lost again in 2012. The formula they're using for victory this year- fire up the base, forget the moderates- may work for a midterm election but it's not likely to be particularly sustainable in a Presidential year.
Some smarter Republicans — and in this number I include Tim Griffin, who for all his faults isn't utterly deficient in IQ — are trying to mask their extremism both because of the districts in which they run and an eye to the future. Their deeds betray them. There are no moderates among their number. They were rooted out long ago.