Trump has claimed that Syrian President Bashar al-Assad's administration has used chemical weapons, and that the USA is considering a response, including military attacks.
Although the president declared that his White House was "calm and calculated", aides said decisions happen fast and with even less warning than usual when Trump feels backed into a corner.
Washington D.C. [United States]: United States President Donald Trump has called off his planned trip this weekend to South America, announced the White House.
President Donald Trump says former FBI Director James Comey is an "untruthful slime ball" who should be prosecuted for leaking classified information.
Vice President Mike Pence will travel to Peru in Trump's stead for the Summit.
Trump says that last Sunday, Syrian President Bashar Assad deployed chemical weapons in what was a "significant escalation in a pattern of chemical weapons use by that very bad regime".
It was not immediately clear whether that decision would be delayed by news that a chemical weapons watchdog will be allowed access to Douma, the site of the attack, where at least 40 people were killed.More news: Deputy NSA resigns from White House
Given the disengagement and Roman sessions, Rosenstein was probably the person who asked judges to allow the Federal Bureau of Investigation to conduct a search in the NY office of private counsel to trump Michael Cohen's office and his hotel room.
Donald Trump on the White House rose garden Thursday.
Trump has vented many times before at what he sees as the utter injustice of the Mueller probe and at his subordinates, like Rosenstein and Attorney General Jeff Sessions.
"A TOTAL WITCH HUNT!" he blasted on Twitter amid news that Federal Bureau of Investigation agents had seized documents pertaining to Trump's dealings.
Trump also expressed confidence in the loyalty displayed by Cohen, his longtime personal and professional fixer, who ascended to one of the most powerful roles at the Trump Organization not filled by a family member.
Following the raid on Trump's longtime lawyer, Michael Cohen, he channeled an unprecedented level of anger toward the Federal Bureau of Investigation and Department of Justice officials, and is reportedly considering firing deputy attorney general Rod Rosenstein. Speaking last month after China removed the two-term limit on its presidency, Trump was full of praise for the idea of a leader continuing indefinitely.
The discussions come as Trump's newest national security adviser, John Bolton, stepped into the job this week.