Joe Biden is leading Donald Trump in the national polls for the presidential election.
But that doesn’t guarantee the Democratic candidate victory. Hillary Clinton also had a clear lead over Trump in the polls for almost the entire 2016 campaign. She ended up losing in the electoral college.
Because the presidential voting system assigns each state a number of electoral college votes, which go to the state’s victor regardless of the margin of victory (with the exception of Nebraska and Maine), a handful of swing states will probably decide the election and be targeted heavily by campaigners.
To clinch a win, a candidate must clinch at least 270 electoral votes. Democratic candidate, Joe Biden already has 183 electoral votes while Republican Candidate, Donald Trump, has 77 electoral votes.
If no candidate receives a majority of the electoral vote (at least 270), the President is determined by the rules outlined by the Twelfth Amendment.