If polls are to be believed, Democratic presidential nominee Joe Biden could well be knocking on the doors of the White House after November 3.

Biden is leading US President Donald Trump in four key swing states days ahead of the election day on November 3. 

According to a poll conducted by the released by the New York Times and Siena College between October 26 and 31, Biden holds an advantage over the Republican incumbent Trump in the states of Pennsylvania, Wisconsin, Arizona and Florida.

NYT says Biden holds a clear advantage over President Trump across four of the most important presidential swing states

Another poll by NBC News/Wall Street Journal declared, "Democrat Joe Biden maintains his double-digit national lead over Republican President Donald Trump in the final national NBC News/Wall Street Journal poll before the 2020 presidential election. 

"Six-in-10 voters are saying that the country is on the wrong track, and with a majority disapproving of the President's handling of the coronavirus." 

"Biden is ahead of Trump nationally by 10 points among registered voters, 52 per cent to 42 per cent, in what has been a remarkably stable race over the course of a tumultuous year in American politics."