After all, the point of the surge, as laid out by Mr. Bush, was to buy time for political reconciliation among the Iraqis. The results have been at best spotty, and even the crucial de-Baathification law celebrated by Mr Bush and Mr McCain in January remains inoperative.  

Mr Obama’s timetable is at least an effort to use any remaining American leverage to concentrate the Iraqi leaders’ thinking. Mr McCain offers only the status quo: a blank check holding America hostage to fate and ceding the president’s civilian authority over war policy to Gen. David Petraeus and his successors.  

Should voters tune in, they’ll also discover that the McCain policy is nonsensical on its face. If “we are winning” and the surge is a “success,” then what is the rationale for keeping American forces bogged down there while the Taliban regroups ominously in Afghanistan? Why, if this is victory, does Mr. McCain keep threatening that “chaos and genocide” will follow our departure? And why should we take the word of a prophet who failed to anticipate the chaos and ethnic cleansing that would greet our occupation? 

And exactly how, as Mr. McCain keeps claiming, is an indefinite American occupation akin to our long-term military role in South Korea? The diminution of violence notwithstanding, Iraq is an active war zone. And unlike South Korea, it isn’t asking America to remain to protect it from a threatening neighbor.  

Iraq’s most malevolent neighbor, Iran, is arguably Prime Minister Nuri al-Maliki’s closest ally. In the most recent survey, in February, only 27 percent of Iraqis said the American presence is improving their country’s security. Far from begging us to stay, some Iraqi politicians, including Mr. Maliki, have been pandering to their own election-year voters by threatening to throw the Yankees out.  

Now That We’ve ‘Won,’ Let’s Come Home