WASHINGTON -- U.S. President Donald Trump is mocking Joe Biden's video in which the former vice-president pledges to alter behaviour that made some women uncomfortable.

The president on Thursday tweeted out a parody video made by a Trump supporter and which had been posted overnight by Dan Scavino, White House director of social media.

Biden put out a video Wednesday saying he understood that his touchy-affectionate behaviour upset some women and pledging to change his ways.

In the doctored video tweeted Thursday by Trump, images of Biden pop up alongside the vice-president, touching and nuzzling him. Trump added the caption: "WELCOME BACK JOE!"

Several women have come forward in recent days to complain about Biden's behaviour.

More than a dozen have accused Trump of sexually harassing them. Trump denied the charges.