There are more conservatives than Republicans and more Democrats than liberals. That's one of the asymmetries between the parties that helps to explain the particular political spot we're in. The numbers are fairly clear. In the 2008 exit poll, 34 percent of voters described themselves as conservatives and 32 percent as Republicans; 39 percent described themselves as Democrats but only 22 percent as liberals.
It's been this way for a long time. The premise of John Kenneth Galbraith's "The Liberal Hour," published in 1960, was that conservative politicians wanted to identify themselves as liberals, as supporting Franklin Roosevelt's New Deal, when it came time for elections.
But as in his description of the economy in "The New Industrial State," Galbraith was telling us how things had been, not how they would soon be. By the late 1960s, with riots blazing in big cities and rebellions roaring on university campuses, the balance shifted away from liberals and toward conservatives.
The result is that the two parties have offsetting political advantages. Democrats tend to win on party identification. Republicans tend to win on ideology. Democrats don't have to appeal to as many independents as Republicans do. Republicans don't have to appeal to as many moderates as Democrats do.
But the Democrats have a problem here. The party's leadership currently tilts heavily to the liberal side. Barack Obama is from the university community of Hyde Park in Chicago. Speaker Nancy Pelosi is from San Francisco, and important House committee chairmen are from similar "gentry urban" locales -- Henry Waxman from the West Side of Los Angeles, Charles Rangel from a district that includes not only Harlem but much of the Upper West Side of Manhattan, Barney Frank from Newton, Mass., next door to Boston.
Of the 21 top leadership members and chairmen, five come from districts carried by John McCain, but the average vote in the other 16 districts was 71 percent to 27 percent for Obama.
All these Democratic leaders understand that their home turf tilts far left of the rest of the nation. But a politician's political base is ultimately his or her reality principle. Moreover, most of these leaders -- though Obama obfuscated this in his campaign -- have strong, long-held convictions that are well on the left of the American political spectrum.
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