 With so much audience splintering, presidential debates are among the few events that still draw a large audience. It's likely the only audience larger for a single event will have been this year's Super Bowl. Whether the debate changes a lot of minds is a different story, but it could change the trajectory of this campaign in a race that's widely expected to be one of the tightest ever. WTOP's Mitchell Miller on Capitol Hill. You can catch the debate live right here on WTOP and at WTOP.com starting at 9 tonight.