Clinton was in DC on 9/11. And, yes, the Pentagon was hit as well but that has little to do with the Senator from New York, as opposed to being from elsewhere.
Iraq has nothing to do with 9/11, never has, never will. It's historically inaccurate and, frankly, racist to suggest otherwise. And, no, the senator from New York who was in DC that day doesn't have any special insight or perspective on the subject.