The failure of the American left is a failure of nerve. It has been neutralized and rendered ineffectual as a political force because of its refusal to hold fast on core issues, from universal, single-payer, not-for-profit health care for all Americans, to the steadfast protection of workers’ rights, to an immediate withdrawal from the failed occupation of Iraq to a fight against a militarized economy that is hollowing the country out from the inside.

Let the politicians compromise. This is their job. It is not ours. If the left wants to regain influence in the nation’s political life, it must be willing to walk away from the Democratic Party, even if Barack Obama is the nominee, and back progressive, third-party candidates until the Democrats feel enough heat to adopt our agenda. We must be willing to say no. If not, we become slaves.

The Democrats are doing everything they can to blow this presidential election. This is a skill that comes naturally to the party. There is no such thing as a can’t-miss year for the Democrats. They are truly gifted at finding ways to lose.

Jimmy Carter managed to win the White House in 1976 by looking pious and riding a wave of anti-Watergate revulsion. After four hapless years, he dutifully handed the keys back to the G.O.P.

Bill Clinton tried hard to lose, with sex scandals and whatnot, during the 1992 campaign. But Ross Perot wouldn’t let him. Mr. Clinton won with a piddling 43 percent of the vote. For eight years, Mr. Clinton tried to throw the presidency away (with sex scandals and whatnot), but he was never able to succeed.

That’s been it for the party for the past 40 years. The Democrats have become so psychologically battered by these many decades in the leadership wilderness that they consider the Clinton years, during which the president was impeached and they lost control of both houses of Congress, to have been a period of triumph.

While you Democrats are pounding each other to a pulp in Pennsylvania, the President has snuck back down to New Orleans for a meeting of the NAFTA Three: the Prime Minister of Canada and the President of Mexico.

You’re not supposed to know that – for two reasons:

Bush's economics haven't failed at all. They've worked spectacularly well, and exactly as designed: The rich got richer and, well, fuck everyone else.