Donald Trump posts video of truck showing hog-tied Joe Biden
The Biden campaign team accused Mr Trump of “regularly inciting political violence” ahead of November’s election.
A spokesman for the Trump campaign said Democrats have been calling for “despicable violence” against Mr Trump.
Mr Trump posted the video on his social media site Truth Social on Friday.
According to the caption, it was filmed in Long Island, New York, on Thursday when the former president attended the wake of a New York City police officer who was killed during a traffic stop.
The video shows two passing trucks on the road, both covered in US flags and flags claiming support for the police.
The second truck was emblazoned with the words “Trump 2024”, and the rear of the vehicle features an image of Mr Biden with his hands and feet tied.
Mr Trump’s promotion of the video drew criticism from Mr Biden campaign’s team.
“Trump is regularly inciting political violence and it’s time people take him seriously – just ask the Capitol police officers who were attacked protecting our democracy on 6 January,” spokesman Michael Tyler said, referring to the storming of Congress by the former president’s supporters after he falsely claimed the 2020 election had been stolen from him.