Polls show Democratic candidate Joe Biden with a strong lead as the US presidential election campaign enters its final three days.
The incumbent Republican president Donald Trump is trailing, according to an analysis of recent polls by FiveThirtyEight.
Mr Trump will campaign in the key state of Pennsylvania on Saturday as he kicks off a weekend of rallies.
Mr Biden is scheduled to appear in Michigan on Saturday, along with former president Barack Obama.
He will then campaign in the crucial battleground state of Pennsylvania on Sunday and Monday.
Democrats are hoping to win back some of the ground lost to Donald Trump in 2016 when a trio of midwest states – Wisconsin, Michigan and Pennsylvania – delivered the Republican candidate the White House.
Though Mr Biden has a clear lead in national level polls, the margins are much narrower in battleground states.
The US electoral college system means Mr Biden can win the popular vote, as Hillary Clinton did in 2016, and still lose to Donald Trump.
With just days to go until election day, early voting numbers have shattered records.
More than 84 million people have cast their vote already, prompting expectations of record turnout numbers.
In Texas more than nine million people have voted with one day of early voting remaining.
