This explanation strikes me as a little convenient for the Bushies. While you obviously never want to ignore your base, the reason the Bushies are focusing so hard on their's isn't that they've carefully appraised the political landscape and concluded that this is their best strategy. They're focusing on their base because they have to: Despite Karl Rove's best efforts, the Republican base still isn't shored up.

Rove's grand plan was to spend the first three years of Bush's term stroking conservatives' erogenous zones--lots of tax cuts, conservative judges, regulatory rollbacks, and religiously hued social policy (the administration's marriage initiative, its efforts to restrict access to abortion, its retrograde stem cell research policies, etc.). The idea behind this stuff was that it would give Bush the political capital to tack leftward during his re-election campaign.

But a funny thing happened on the way to the center: Rove discovered that conservatives don't just want to win on some issues, they want to win on every issue. Conservatives went ballistic over last year's Medicare prescription drug bill, over additional money for the reconstruction of Iraq, over the deficit and the failure to control spending generally, and over the administration's perceived indifference to gay marriage. Equally maddening to conservatives were proposals like a manned mission to Mars and immigration reform. So rather than spend this year reaching out to moderates, as planned, Rove found himself in full retreat, junking Mars and illegal immigrants, embracing a constitutional ban on gay marriage.

His thesis, basically, is that Republicans are temperamentally unable to compromise because they see things in black and white,  manichean terms --- otherwise known as Yer-With-Us-Or-Agin-Us, My-Way-Or-The-Highway or the I'll-Hold-My-Breath-Until-I-Turn-Blue philosophy of politics. He further explains that Democrats' collection of interest groups means that activists who agitate for certain issues like gay rights or choice are more willing to compromise because they are usually personally affected by government and are therefore, more apt to feel the immediate consequences of incremental change. (Regardless of the motivation, it seems to me that Democrats are just more "into nuance" e.g. smarter.)

What he does not point out, however, is that if this description of the Republicans political viewpoint is correct it illustrates why they are fundamentally unqualified to govern in a democratic system. If one is unwilling to compromise then any kind of bipartisan consensus is impossible and rule by force becomes inevitable.

This is undoubtedly why we have seen a steady encroachment of the constitution in the last few years. First came the impeachment, the nuclear option of partisan warfare. Then we saw the Supreme Court intervene in a presidential election despite a clear constitutional roadmap for dealing with just such a situation. Now they are pre-emptively endorsing the radical idea of a constitutional amendment to remedy a supposed problem that has not even been decided by more than two state supreme courts and one act of civil disobedience in California. (And, if California is any guide, amending the constitution will shortly become the default strategy for all of the right wing's pet causes.)

Karl Rove, however, has to win this election in a system that requires that his boy at least feint to the middle. His strategy, as Schreiber delineates above, didn't work. There is no pleasing the right wing and there is no room for compromise. And, he is learning, just as the centrist Dems learned in the 90's when they tried to maintain a bipartisan consensus, that if you give these wing-nuts an inch, they'll take a mile. The more you move to the right, the more they move to the right. There is no meeting half way.

Welcome to our nightmare, Mr Rove.