Former CIA Director John Brennan John Owen BrennanJournalism or partisanship? The media's mistakes of 2016 continue in 2020 Comey on Clinton tweet: 'I regret only being involved in the 2016 election' Ex-CIA Director Brennan questioned for 8 hours in Durham review of Russia probe MORE blasted President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE in a tweet Sunday for his attacks on Canadian Prime Minister Justin Trudeau, telling U.S. allies that Trump is a “temporary aberration.”

“Your wrong-headed protectionist policies & antics are damaging our global standing as well as our national interests. Your worldview does not represent American ideals,” Brennan tweeted. “To allies & friends: Be patient, Mr. Trump is a temporary aberration. The America you once knew will return.”

Your wrong-headed protectionist policies & antics are damaging our global standing as well as our national interests. Your worldview does not represent American ideals. To allies & friends: Be patient, Mr. Trump is a temporary aberration. The America you once knew will return. https://t.co/7qHthq2GuT — John O. Brennan (@JohnBrennan) June 10, 2018

Brennan has been highly critical of Trump, recently saying that the president's "kakistocracy is collapsing."

Trump had gone after Trudeau in a pair of tweets after the Group of Seven (G-7) summit on Saturday, calling him “dishonest and weak.”

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Based on Justin’s false statements at his news conference, and the fact that Canada is charging massive Tariffs to our U.S. farmers, workers and companies, I have instructed our U.S. Reps not to endorse the Communique as we look at Tariffs on automobiles flooding the U.S. Market! — Donald J. Trump (@realDonaldTrump) June 9, 2018

PM Justin Trudeau of Canada acted so meek and mild during our @G7 meetings only to give a news conference after I left saying that, “US Tariffs were kind of insulting” and he “will not be pushed around.” Very dishonest & weak. Our Tariffs are in response to his of 270% on dairy! — Donald J. Trump (@realDonaldTrump) June 9, 2018

The president also refused to endorse a joint communique signed by the other G-7 countries after the summit this weekend.

Trudeau had earlier criticized Trump for hitting Canada with steep tariffs on steel and aluminum imports.

Sen. John McCain John Sidney McCainThe Memo: Trump's strengths complicate election picture Mark Kelly: Arizona Senate race winner should be sworn in 'promptly' Cindy McCain: Trump allegedly calling war dead 'losers' was 'pretty much' last straw before Biden endorsement MORE (R-Ariz.) also sent a message of support to U.S. allies after Trump's comments Saturday, tweeting that “Americans stand with you, even if our president doesn’t."