Voting for the US presidential election 2020 is underway, and Donald Trump and his rival Joe Biden had urged their supporters on Twitter to come out and vote. This election, which comes in the midst of the Covid-19 pandemic that has severely hit the US, is largely being seen as a referendum on the four years of the Trump administration. Meanwhile, the US is "more divided and angry" than at any time since the Vietnam War era of the 1970s, said a report, announcing the start of Tuesday's voting. Watch this video to know how the race between Biden and Trump has been tightening.