Polls show Democratic candidate Joe Biden with a decisive lead as the US presidential campaign enters its final weeks.
The incumbent Republican president Donald Trump is trailing, according to an analysis of recent polls by FiveThirtyEight.
However, the US electoral college system means Biden can win the popular vote and still lose to Donald Trump.
This is what happened in 2016 – the Democratic candidate Hillary Clinton won almost three million votes more than Trump.
A more accurate predictor of the electoral race is the polling in a handful of swing states.
Trump is also trailing in these battleground areas, but by much narrower margins than the national picture.
On election night the focus will be on a trio of rust-belt states – Michigan, Wisconsin and Pennsylvania. Voters here swung Republican in 2016 and handed Donald Trump his victory.
Voting is already taking place across the US with the polls closing on November 3rd.
It takes several days for every vote to be counted. If the election is close there may not be a certain result immediately.
However, the winner is usually clear by the early hours of the following morning.
