Secretary of State Mike Pompeo and Treasury Secretary Steven Mnuchin answer questions during a briefing at the White House, in Washington, Sept. 10, 2019.
Secretary of State Mike Pompeo and Treasury Secretary Steven Mnuchin answer questions during a briefing at the White House, in Washington, Sept. 10, 2019.

VOA’s Russian service, VOA National Security Correspondent Jeff Seldin and writer Kenneth Schwartz contributed to this report.

WHITE HOUSE - President Donald Trump’s firing of National Security Adviser John Bolton will not change Trump’s foreign policy, Secretary of State Mike Pompeo said.

“I don’t think any leader around the world should make any assumption that because one of us departs that President Trump’s foreign policy will change in a material way,” Pompeo said less than two hours after Trump announced on Twitter that he had ousted Bolton.

Pompeo appeared on the White House podium along with U.S. Treasury Steven Mnuchin to discuss an executive order strengthening sanctions to combat terrorism.

WATCH: Trump Fires His National Security Adviser

Bolton was supposed to join the briefing, announced only hours earlier, indicating the hasty nature of his departure.

“I informed John Bolton last night that his services are no longer needed at the White House,” Trump said at noon on Tuesday on Twitter. “I disagreed strongly with many of his suggestions, as did others in the Administration, and therefore....I asked John for his resignation, which was given to me this morning.”

The president thanked Bolton for his service and said he would be naming a replacement next week.

Bolton’s deputy, Charlie Kupperman, will be the acting national security adviser.

Bolton, in a quick and immediate response to his ouster on Twitter said: “I offered to resign last night and President Trump said, Let’s talk about it tomorrow.’”

The White House denies that any one single issue caused the break between Bolton and Trump.

“They just didn’t align on many issues,” spokesman Hogan Gidley told reporters while Pompeo told reporters, “There were many times Ambassador Bolton and I disagreed.”

FILE - U.S. President Donald Trump, left, conducts a meeting in the Oval Office of the White House in Washington, May 22, 2018, as then-National Security Adviser John Bolton, right, looks on.

“It would seem it’s business as usual in this administration,” former Director of National Intelligence James Clapper tells VOA. “Of course, foreign nations watch the chaos, which the president relishes, with either glee or gloom, depending on how they feel about the U.S.”

Bolton had reportedly been opposed to plans to invite Taliban members and Afghan President Ashraf Ghani to the Camp David presidential retreat for talks aimed at solidifying a U.S.-Taliban peace deal.

Trump canceled the meeting after a recent Taliban attack killed a U.S. soldier.

There also have been indications that Bolton, a hard-liner on security issues, also differed with the president on the approach to Iran, North Korea and Venezuela.

FILE - President Donald Trump speaks during a meeting with North Korean leader Kim Jong Un, in Hanoi, Vietnam, Feb. 28, 2019. At left is then-National Security Adviser John Bolton.

Senator Bob Menendez, the top Democrat on the foreign relations committee, told reporters Bolton’s firing is emblematic of Trump’s style.

“He wants people who basically are yes men. I may not have agreed with Ambassador Bolton on a whole host of issues and his bellicose views, but the one thing about him is he obviously presented counterviews at times for his consideration. That’s not something the president wants,” Menendez said.

University of Houston political science professor Zachary Zwald tells VOA’s Russian service the reported strife and disagreement among Trump’s foreign policy team is much more troubling than Bolton’s departure.

“It’s beyond debate that President Trump doesn’t have a coherent foreign policy perspective, a world view, a grand strategy that is motivating his positions. I don’t know how much the firing of Bolton communicates the consistency or inconsistency of President Trump’s policies,” Zwald said.

Trump picked Bolton in March 2018 to replace former Army Lieutenant General H.R. McMaster as national security adviser.

Trump’s first adviser, Michael Flynn, lasted less than a month in the job before being fired. He was subsequently convicted of lying to the FBI about December 2016 conversations with the Russian ambassador to the United States. Flynn is awaiting sentencing.

Bolton, a former U.S. ambassador to the United Nations, was brought into this administration after a stint as a commentator on the Fox News Channel, which is generally supportive of President Trump.

Bolton is a former U.S. ambassador to the United Nations. He had served in three previous Republican administrations and also held roles in the Justice and State departments.

Trump had noted Bolton’s reputation as a hawk, once saying in the Oval Office that “John has never seen a war he doesn’t like.”

Trump never appeared to warm to Bolton and had expressed reservations about him prior to hiring him, including making comments about Bolton’s bushy mustache.