Election Day voting in the US was in its final hours on Tuesday as the country braced for a potentially contentious – and lengthy – count of the results to find out whether Kamala Harris or Donald Trump won the extremely tight presidential contest. The outcome of the race between Harris, the Democratic vice president, and Trump, the former Republican president, remained a toss-up as voters cast their ballots, with 270 electoral votes needed to win. For months, the two candidates’ campaigns have focused on the seven swing states that will almost surely decide the election: Arizona, Georgia, Mic…