Prime Minister Justin Trudeau and U.S. President Donald Trump take part in a joint press conference at the White House in Washington, D.C., on February 13, 2017. THE CANADIAN PRESS/Sean Kilpatrick

President Donald Trump took to Twitter the night before arriving at the G7 Summit to accuse Prime Minister Justin Trudeau of “being so indignant” on the issue of U.S.-Canada relations as the trade war ratchets up between the two nations.

Trump took shots at both Trudeau and French President Emmanuel Macron in another tweet accusing them of “charging the U.S. massive tariffs.”

“Look forward to seeing them tomorrow,” he quipped.

The Washington Post reports that Trump is begrudgingly attending the G7 summit in Charlevoix, Quebec, believing it to be a distraction from his upcoming summit with North Korean leader Kim Jong Un.

Trump’s interactions with the other six world leaders, particularly Trudeau, are expected to be tense as their trade feud is being aired out in public. Last week, Canada announced retaliatory tariffs against American goods after Trump imposed tariffs on Canadian aluminum and steel and accused its northern neighbor of being a threat to U.S. national security.

Canada and France had pledged to approach Trump at the Summit with polite persuasion and warnings that his harsh trade tariffs would hinder the U.S. economy and job growth. The two leaders also offered Trump “solidarity” in his attempts to reach a denuclearization agreement with North Korea.

"American jobs are on the line because of his actions and because of his administration," Trudeau told reporters a joint news conference in Ottawa on Thursday. "When we can underscore this, and we see that there's a lot of pressure within the U.S., perhaps he will revise his position."