The Republican YouTube debate hasn't even begun, and it's already obsolete. Why? Because all of the questions that we'll hear tonight were submitted by YouTube users before the Politico broke today's blockbuster news that Rudy Giuliani expensed his adulterous trysts in the Hamptons to NYC taxpayers, then tried to cover it up. And consequently, CNN is left with a curious irony -- the debate stage in St. Petersburg is going to be the only place in America where folks talking about politics won't be discussing the biggest news in politics. Because after today, the Republican race won't look the same.

Beginning tonight, Rudy is more likely than not done as a serious candidate.