Which swing state will be the most pivotal?

With Republican Donald Trump and Democrat Kamala Harris locked in a dead heat in the race for the White House, political forecasters will be eyeing a clutch of counties across the country for clues on who has the edge once polls start to close on Tuesday evening. Matthew Lebo, professor for the Department of Political Science at University of Western Ontario, joined LiveNOW from FOX's Josh Breslow to discuss.