Democratic nominee Joe Biden has edged closer to winning the US presidential election with unofficial results from several states in the country declaring the candidate as a potential winner.

The former Vice President was, Wednesday (US time zone), declared the winner in Wisconsin and Michigan, as President Donald Trump moved on multiple legal fronts to get votes recounted.

The Associated Press projected that Biden was ahead with 264 electoral votes against Trump's 214.

A different version of provisionals results by CNN also showed Biden leading with 253 against Trump's 213 electoral votes.

It takes 270 electoral votes to win the US presidential election.

Each state carries a specific number of electoral votes depending on the size of their population.

Early projection shows Biden has won key states like California, which has the highest electoral votes (55), and Michigan (16), while Trump, on the other hand, has also won key states like Texas (38) and Florida (29).

John Zogby, a renowned pollster and author, had told the press on Wednesday in a virtual briefing that "Biden needs three battleground states to win the presidency,” including Wisconsin, Michigan, and Nevada.

Projection shows he has already secured Wisconsin and Michigan.

A state is projected by major US media outlets when they believe one candidate has an unbeatable lead.

That’s, however, not the final result but it nearly always proves to be correct when all the votes are counted.

In 2016, the election was called for Donald Trump at about 02:30 EST (07:30 GMT), after victory in Wisconsin put him over 270.

Trump’s camp reportedly launched legal fights over counting ballots in several battleground states such as Pennsylvania, Michigan and Georgia as the president’s potential paths to reelection started to narrow.