"Vote him out!" 

The words chanted by protesters as US president Donald Trump visited the Supreme Court to pay his respects to Justice Ruth Bader Ginsburg.

But if Americans do "vote him out" on election day will Mr Trump accept the result?

Asked by reporters if he would commit to a peaceful transfer of power, the US President Donald Trump declined to do so.

"We're going to have to see what happens," he said.

Repeating his claims that postal voting will lead to fraud and inaccuracies he added: "The ballots are a disaster."

White House press secretary Kayleigh McEnany later said that Donald Trump would accept the results of a "free and fair election", continuing to cast doubt on mail-in ballots.

This is not the first time that Donald Trump has suggested he may not leave the White House if Joe Biden wins.

In an interview in July with Chris Wallace of Fox News he refused to give a direct answer when asked if he will accept the election result.

"I'll have to see. I'm not going to just say 'yes.’ I’m not going to say no and I didn’t last time either," Mr Trump said.

In June, his Democratic opponent Joe Biden told The Daily Show that his greatest concern was that Donald Trump would try to steal the election 

"This is a guy who said that all mail-in ballots are fraudulent, voting by mail, while he sits behind the desk in the Oval Office and writes his mail-in ballot to vote in a primary," he said.

Mr Biden said he did not believe Donald Trump would have the support of his generals if he refused to leave office.

"You have so many rank and file military personnel saying, well, we're not a military state, this is not who we are. I promise you; I'm absolutely convinced, they will escort him from the White House in a dispatch," he said.

The act of physically removing someone from the White House is one thing, but if a sitting president refused to accept an election result it could lead to a wave of unrest across the country.

In recent months, there have been clashes between Donald Trump's supporters and Black Lives Matter protesters.

The racial unrest has been reignited this week following the decision not to charge police officers in Louisville, Kentucky with the killing of African-American woman Breonna Taylor.

Democrats are enraged over plans by Republicans to push through a Supreme Court nomination before the election.

Tensions are high right now in the US and the last thing the country needs is a disputed election result. 

Republicans have insisted there will be a peaceful transfer of power and some have dismissed Donald Trump's comments as bluster and rhetoric.

It may be just words from Mr Trump, but when you are the president of the United States, words matter.