Via David Frum, some data describing how the US Republican Party's appeal to their base has alienated them from the wider electorate.

Not quite the permanent majority Karl Rove had in mind. The Republican Party's woes are wide and long. There is the poor governance of the Bush years clear in everyone's mind leaving 90% of American thinking the country is on the wrong track. That was rammed home again with the recent financial crisis when the incompetence of the Bush Administration was put into full light again. The Republican Party has heavily gone for the vituperative echo-chamber approach, which, while highly Schmittian, has meant that with their decreasing popularity, more and more Americans are now enemies of the nation and treasonous. It makes for a democratically unpalatable political party which will leave them unable to win government.