How 2020 will be different from 2016

Hillary Clinton delivers her concession speech in 2016. By Voice of America — https://learningenglish.voanews.com/a/hillary-clinton-concession-speech/3589739.html, Public Domain, https://commons.wikimedia.org/w/index.php?curid=65215608

Could Trump lose the popular vote by 5 million ballots in 2020 and still win re-election?