In reality, the health care wrestling match is less a test of Mr. Obama’s political genius than it is a test of the Democratic Party’s ability to govern. This is not the Reagan era, when power in Washington was divided, and every important vote required the president to leverage his popularity to build trans-party coalitions. Fox News and Sarah Palin have soapboxes, but they don’t have veto power. Mr. Obama could be a cipher, a nonentity, a Millard Fillmore or a Franklin Pierce, and his party would still have the power to pass sweeping legislation without a single Republican vote…

If the Congressional Democrats can’t get a health care package through, it won’t prove that President Obama is a sellout or an incompetent. It will prove that Congress’s liberal leaders are lousy tacticians, and that its centrist deal-makers are deal-makers first, poll watchers second and loyal Democrats a distant third. And it will prove that the Democratic Party is institutionally incapable of delivering on its most significant promises.