Long smoldering stress within President Trump’s national security team divulged into public view s Secretary of State Rex W. Tillerson apprehended exceptional step of vociferating a news conference to assert his sustenance for Mr. Trump despite what colleagues recount as his extensive exasperation with the President and hearsay of resignation.

Mr. Tillerson complimented Mr. Trump but did not repudiate a report that he had once alluded to the President as a moron. Mr. Trump embraced Mr. Tillerson’s statement of support and announced, “total confidence” in his secretary of state.

If Mr. Tillerson had wished to dampen down questions as to his tenure, he rather further charged discussions about his future. Albeit, he contended that he had never contemplated giving in notice, many people proximate to Mr. Tillerson said that he had to be talked out of devising a letter of resignation more than once by his nearest colleagues, Defense Secretary Jim Mattis and John F. Kelly, the White House chief of staff. They also reiterated that he had communicated bewilderment about Mr. Trump’s comprehension of the basics of foreign policy.

An erstwhile chief executive of Exxon Mobil, Mr. Tillerson has never procured his place as a sub ordinate to the impenetrable and arbitrary President. He was infuriated at being undermined when Mr. Trump openly said that Mr. Tillerson was “wasting his time” by trying to initiate discussions with North Korea.

Simultaneously, Mr. Tillerson has estranged lawmakers, foreign policy veterans and the news media while dispiriting the state department and detractors inside and outside the White House contemplated his imperfections as self-wreaked.