Donald Trump declares victory as he addresses crowd of supporters

Donald Trump has addressed his supporters as he edges closer to victory in the US presidential election.

Taking to the stage at his campaign's HQ in West Palm Beach, Florida, former president said he had 'made history' after being projected to win the battleground states of North Carolina, Georgia and Pennsylvania.

"Every single day I will be fighting for you, with every single breath in my body. I will not rest until we have delivered the strong, safe and prosperous America that children deserve," Trump said.

"And that you deserve. This will truly be the golden age for America."

As Trump declared he would 'make America great again', he sat four electoral college votes from victory.

Donald Trump has already declared victory (Sky News)

The Republicans haven't been announced as winners just yet as the presidential race has yet to be called.

Though they have taken control of the Senate, something Trump touched on during his speech.

"They were tough races... the number of victories in the Senate was absolutely incredible," he added.

"It also looks like we'll be keeping control of the House of Representatives."

Trump also thanked his wife, Melania, stating she has done a 'great job' and 'works very hard'.

His running mate, JD Vance, also addressed supporters while on stage in Florida.

"I think that we just witnessed the greatest political comeback in the history of the United States of America," Vance said.

"Under president Trump's leadership, we're never going to stop fighting for you, for your dreams, for the future of your children.

"And after the greatest political comeback in American history, we're going to lead the greatest economic comeback in American history - under Donald Trump's leadership."

The presidential race has yet to be called (Chip Somodevilla/Getty Images)

One of the key states Trump has taken overnight is Pennsylvania, with victory there seen as the keys to the White House.

As Trump said during a rally in September: "If we win Pennsylvania, we win the whole thing. It’s very simple."

An election official revealed to CNN that 'at least 182,000 registered voters' in Pennsylvania cast their ballots early on in the election process.

Although, they noted that was prior to the city picking up the remaining votes cast in-person, and votes made at drop-off locations are still to be collected.

In last two presidential elections, Pennsylvania has been considered the most likely tipping-point state and holds 19 electoral votes.

CNN and NBC have projected Trump to win Pennsylvania, securing the state's 19 electoral votes.