Could 'rogue electors' tilt the balance of the US election?

It’s 3 November 2020, election day. The most expensive – and nastiest – presidential race in US history is over. Turnout is light, but only because the Covid-19 pandemic has led tens of millions to abstain or vote by absentee ballot. By the time polls close on the west coast, the race remains too close to call. But shortly after midnight, the major networks announce that Joe Biden has eked out the narrowest of victories, with the former vice-president winning...