In a series of Sunday night tweets, President Trump repeated his claims of unfair international trade practices against the United States' closest allies in the G7, saying that "Fair Trade is now to be called Fool Trade if it is not Reciprocal" — and singling out Canadian Prime Minister Justin Trudeau.

The latest: Earlier this afternoon, German Chancellor Angela Merkel called Trump's decision to pull out of the G7's joint communique via tweet as "sobering and a bit depressing."

More Trump tweets from Singapore: