Former Vice President Joe Biden Joe BidenBiden says voters should choose who nominates Supreme Court justice Trump, Biden will not shake hands at first debate due to COVID-19 Joe Biden should enact critical government reforms if he wins MORE blasted President Trump Donald John TrumpBiden says voters should choose who nominates Supreme Court justice Trump, Biden will not shake hands at first debate due to COVID-19 Pelosi: Trump Supreme Court pick 'threatens' Affordable Care Act MORE on Wednesday over a video of several NATO leaders mocking the U.S. leader over the length of a press conference he hosted at the start of the NATO summit.

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In a video released by Biden's Twitter account, ominous music plays as news anchors discuss footage of Canadian Prime Minister Justin Trudeau Justin Pierre James TrudeauCanada says former ambassador to US violated conflict-of-interest law No new Canadian COVID-19 deaths reported for first time since mid-March Trudeau announces millions for first 'Black Entrepreneurship Program' MORE, British Prime Minister Boris Johnson and French President Emmanuel Macron Emmanuel Jean-Michel MacronLebanon's prime minister-designate resigns Navalny released from hospital after suspected poisoning US-China tensions shadow United Nations meeting MORE discussing Trump's lengthy press conference earlier Wednesday.

Biden, a 2020 candidate for president, says at the end of the video that the U.S. will face a "great deal of difficulty" regaining respect on the world stage should Trump be reelected.

"The world is laughing at President Trump. They see him for what he really is: dangerously incompetent and incapable of world leadership. We cannot give him four more years as commander in chief," he added on Twitter.

The world is laughing at President Trump. They see him for what he really is: dangerously incompetent and incapable of world leadership.



We cannot give him four more years as commander in chief. pic.twitter.com/IR8K2k54YQ — Joe Biden (@JoeBiden) December 5, 2019

In the Wednesday footage, Trudeau can be heard saying, "He was late because he takes a 40-minute press conference off the top," though he does not mention Trump's name.

Trump himself addressed the comments made by Trudeau, calling the Canadian leader "two-faced" while adding that the world leaders "weren't laughing at me, they were laughing with me."

Some speculated that the recorded exchange between the world leaders was what led to Trump canceling his scheduled press conference before heading back home from the NATO summit in London.