After three quarters of a million minutes of Campaign 2008, the finale to Act 1 took just 90 min. more, but it was perfect political theater. As Barack Obama won his prize at last, the three contenders performed back-to-back, on message and in high definition, sounding like themselves--only more so. If you revere or revile any of them, Tuesday's coda reminded you why.
John McCain, speaking first in New Orleans, said he was proud to call Hillary Clinton his friend. Then he borrowed her kitchen knives and sharpened every one, attacking Obama for his naiveté, inexperience and general wussiness. Obama may...