Elon Musk is set to interview Donald Trump live on his X social media account

Billionaire entrepreneur Elon Musk is due to interview Republican candidate Donald Trump on the X social media platform in an event that could inject more surprises into the turbulent US presidential election.

Posting on X for the second time since 2021, Mr Trump shared a dramatic campaign video as well as a post promoting the interview.

The interview, scheduled for 10am AEST on Tuesday, could provide the former president an opportunity to seize the limelight at a time when his campaign is seen as sagging.

His Democratic rival for the November 5 election, Vice President Kamala Harris, has erased Trump’s lead in opinion polls and energised Democratic voters with a series of high-energy rallies.

The interview on Musk’s X could allow Trump to reach a different audience than the conservative faithful who attend his rallies and watch his interviews on Fox News. However, similar events on the platform have been plagued by technical problems.

“Am going to do some system scaling tests tonight; tomorrow in advance of the conversation,” Musk wrote on the platform, formerly known as Twitter.

The interview will be hosted live using Trump’s official X account, his campaign said. Trump’s access to his account, @realDonaldTrump, was restored a month into Musk’s ownership of X after being suspended by the platform’s previous owners following the January 6, 2021, attack on Congress by his supporters.

Trump frequently posts on his Truth Social social media platform, which was launched in February 2022. He has returned to X only once since his access was restored with a post in August 2023 appealing for donations and showing his Fulton County jail mug shot.

Musk could prove to be an unusual interviewer. The world’s richest person backed Democratic President Joe Biden in 2020 but has tacked rightward since and endorsed the Republican following the attempted assassination of Trump in July.

Musk, who heads the electric car company Tesla, also started a fundraising organisation to support Trump’s campaign. The political action committee is now under investigation in Michigan for possible violations of state laws on gathering voter information.

Trump, a longstanding critic of electric vehicles, shifted gears after Musk’s endorsement.

“I’m for electric cars. I have to be, because Elon endorsed me very strongly. So I have no choice,” Trump said at an early August rally.

Advertisers have fled X since Musk bought it in 2022 and subsequently reduced content moderation which has resulted in a dramatic increase in hate speech, civil rights groups have said.

In the meantime, the entrepreneur has been involved in a swirl of additional controversies. He has falsely accused Biden and the Democratic Party of opening US borders to undocumented immigrants in a ploy to boost the number of potential Democratic voters. Non-citizens are not allowed to vote in federal elections.

Musk in November 2023 endorsed an antisemitic post on X that said members of the Jewish community were stoking hatred against white people. He defended himself, saying the user was speaking “the actual truth.”