Romney campaign is putting on the debates. mark hurry, nbc news, senior political editor, telling us those conventions do matter after all. thank you, sir, have great sunday. three days until the much-anticipated first presidential debate and the romney camp betting that the showdown as you just heard there, will be a game-changer. governor romney is going to lay out his vision for a better and greater america for greater opportunity for all of our citizens. and i think that s when you re going to see this race really start to tighten. and then move in governor romney s direction. come thursday morning, the entire narrative of this race is going to change. joined by chris kofenus communications editor. chris, let me start with you. is this thing going to be as governor christie just said, is it going to be a game-changer? well, thanks for chris christie for raising expectations. i mean here s the reality i