A record 90 million Americans have voted early in the U.S. presidential election, data on Saturday showed, as President Donald Trump and his Democratic rival Joe Biden campaigned across the country to try to sway the few remaining undecided voters. Concerns about exposure to the coronavirus at busy Election Day voting places on Tuesday have also pushed up the numbers of people voting by mail or at early in-person polling sites. The Republican president is spending the closing days of his re-election campaign criticizing public officials and medical professionals who are trying to combat the coronavirus pandemic even as it surges back across the United States.