(CNN) A high-ranking official from former President George W. Bush's State Department shared a dire assessment of the current geopolitical state of affairs, calling it "the most perilous moment in modern American history."

President Donald Trump "is now set for war on 3 fronts: political vs Bob Mueller, economic vs China/others on trade, and actual vs. Iran and/or North Korea," Richard Haass tweeted Friday. "This is the most perilous moment in modern American history -- and it has been largely brought about by ourselves, not by events."

.@realDonaldTrump is now set for war on 3 fronts: political vs Bob Mueller, economic vs China/others on trade, and actual vs. Iran and/or North Korea. This is the most perilous moment in modern American history-and it has been largely brought about by ourselves, not by events. — Richard N. Haass (@RichardHaass) March 23, 2018

Haass, a pillar of the US foreign policy establishment and longtime president of the Council on Foreign Relations , a premiere foreign policy think tank, previously accused the Trump administration of abdicating US global leadership.

Haass' appraisal on Friday comes after a day of major developments out of the Trump White House.

On Thursday morning, Trump's lead lawyer, John Dowd, resigned from the President's personal legal team handling the response to the Russia investigation. Dowd's resignation came amid growing disagreements with Trump over the response to special counsel Robert Mueller's probe.