Former Vice President Joe Biden said Friday that he knew a month before the 2016 election that Hillary Clinton would lose key battleground states. Biden made the comment during a closed-door appearance with Mitt Romney at the annual Romney-hosted E2 Summit, reports Politico. Based on his assessment of campaigning in those key battleground states, he said, he knew a month before the election that Clinton would lose them. Biden also stepped on Hillary just last month, saying he never thought she was a “great candidate” during a conference in Las Vegas. …