Michigan, a battleground state that will help determine who wins the U.S. presidential election, is still counting "tens of thousands" of ballots according to a top state official and emotions were running high in Detroit, where poll watchers were barred from the counting room on Wednesday afternoon. Republican President Donald Trump narrowly won Michigan in 2016 but late on Wednesday, CNN, Edison Research and Fox News declared Democratic challenger Joe Biden won the state. Trump has made clear he will fight to challenge the results there.