McCain made a terrible mistake taking a crack at Michael Moore. The Republicans are trying to put the emphasis on the more moderate folks on the podium, not on the hardcore folks on the floor. But the signal moment everyone will be talking about tomorrow is thousands of conventioneers baying at Michael Moore, with Moore yucking it up. McCain looked incredibly uncomfortable playing this unfamiliar role, whipping up the partisan ire of the crowd. He's more in his zone when he "speaks uncomfortable truths," rather than telling the crowd what they want to hear. Unfortunately, this will overshadow his very strong ending, his "never surrender" call to arms. It will also overshadow his compelling argument that the pre-war status quo in Iraq was unstable, that it was unravelling and the choice was really between war and some sort of re-normalized relationship with Iraq. This is THE best argument for invading Iraq, not WMD, and not human rights. It's one that the Republicans, if they're smart, will emphasize in every speech at the convention.