LONDON (AP) — While NATO leaders are professing unity as they gather for a summit near London, several seem to have been caught in an unguarded exchange on camera apparently gossiping about U.S. President Donald Trump’s behavior.

In footage recorded during a reception at Buckingham Palace Tuesday evening, Canadian Prime Minister Justin Trudeau was seen standing in a huddle with French President Emmanuel Macron, British Prime Minister Boris Johnson, Dutch Prime Minister Mark Rutte and Britain’s Princess Anne, daughter of Queen Elizabeth II.