Donald Trump has stuck his middle finger up and appears to have sworn at a factory worker who heckled him.
The US president was standing on an elevated platform at a Ford factory in Detroit when a worker appeared to shout "paedophile protector" at him.
Trump responded by pointing at the worker and appearing to say the words "f— you" twice.
READ MORE: Clintons to face contempt proceedings
As he walked away, the president flashed his middle finger at the man.
White House Communications Director Steven Cheung responded with a statement to TMZ.
"A lunatic was wildly screaming expletives in a complete fit of rage, and the president gave an appropriate and unambiguous response," Cheung said.
Trump is under increasing scrutiny of his friendship with notorious paedophile Jeffrey Epstein.
After a congressional vote forced the release of the Department of Justice's Epstein files, his administration only released a fraction of the documents.
READ MORE: Less than one per cent of Jeffrey Epstein files released
Meanwhile, the House Oversight Committee will begin contempt proceedings against Bill and Hillary Clinton after they defied a subpoena overnight.
The former president did not appear to testify into the committee's investigation into Jeffrey Epstein.
Mrs Clinton said she will not appear as scheduled tomorrow.
Despite his long ties to Epstein, Trump himself has not been subpoenaed.
Trump was in the city to speak at the Detroit Economic Club to promote his economic agenda.
But he went off message to threaten to revoke the citizenship of any Somali-Americans found guilty of fraud.
"If you come to America to rob Americans, we're throwing you in jail and we're sending you back to the country from where you came," Trump said.
"As we liberate our country from this cultural scourge and the plague of corruption and fraud, we will rediscover the natural energy and native spirit that truly makes America great again."
Such a move from the president would be illegal.
The president is under pressure over flagging economic data.
Jobs numbers have been muted while prices continue to rise.
And his tariffs have not led to a boost in manufacturing jobs in America, counter to his claims.
"The results are in, and the Trump economic boom has officially begun," he said today.
"One of the biggest reasons for this unbelievable success has been our historic use of tariffs."
Manufacturing jobs in the US actually declined by tens of thousands this year.
As part of the trip, Trump visited the factory that makes F-150 utes.
READ MORE: Trump announces new tariffs in response to Iran's deadly crackdown on protests
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