Washington (CNN)Hours before President Donald Trump agreed to meet with Kim Jong Un, Secretary of State Rex Tillerson told reporters the US was “a long way” from direct talks with North Korea. It was just the latest episode of public dissonance between the President and his secretary of state on the thorniest and most significant foreign policy issue facing the US. It would also be the last. The next day, Tillerson was roused from his sleep in a Nairobi, Kenya, hotel room by a call from White House chief of staff John Kelly, who told the former Exxon CEO that his time as the US’ top diplomat was up, three administration officials said. Two people familiar with the matter said the North Korea issue was the biggest factor in the decision, as Trump and Tillerson have clashed over the US approach for months.

Washington Post – On the flight back from Nigeria, Tillerson appeared to break with the White House in his assessment of the poisoning of a former Russian spy and his daughter in Britain. He singled out Russia as responsible for the attack, echoing the finger-pointing of the British government. “It came from Russia,” Tillerson said, according to the Associated Press. “I cannot understand why anyone would take such an action. But this is a substance that is known to us and does not exist widely.” Earlier Monday, White House press secretary Sarah Huckabee Sanders condemned the attack as “reckless, indiscriminate and irresponsible,” and expressed solidarity with Britain, but would not say whether the United States believes Russia was behind it.

Pompeo long has been mentioned as Tillerson’s most likely replacement. As CIA director, the former Republican lawmaker from Kansas developed a warm relationship with Trump, often delivering the President’s Daily Brief to Trump in person and racing over to the West Wing at a moment’s notice to field the president’s queries on a range of topics. Pompeo often is found in a host of meetings that do not necessarily deeply involve his agency, simply because Trump likes him, said one White House official. Sen. Tom Cotton (R-Ark.) was initially mentioned as a replacement for Pompeo, but Trump opted to promote from within by elevating Haspel. Tillerson emerged as one of the strongest voices in the administration critical of Russia. For months, he has been saying Russia clearly meddled in the 2016 U.S. election, even as Trump shied away from any critical remarks. Trump seemed to resent pressure to stay the course on such issues as China’s trade practices, the war in Afghanistan and the Iran nuclear deal, those people said. Tillerson pushed Trump to preserve the Iran accord, at least for now, with a July pronouncement that Iran was meeting its end of the bargain — which curbs Iran’s nuclear program in exchange for lifting international sanctions. Trump said in a Wall Street Journal interview that he regretted making that determination. In October, Trump kept in place the sanctions waivers, but warned he may not continue the policy when the next review is due in May. Although Tillerson supported the approach to the war in Afghanistan that Trump announced last year, he felt no need to frame U.S. goals in the same maximal terms as the commander in chief. Where Trump proclaimed on Aug. 21 that “our troops will fight to win,” Tillerson laid out a much more modest agenda

 

Feb. 1, 2017: Tillerson is confirmed

June 9: Trump breaks with Tillerson on Qatar

June 13: Tillerson breaks with Trump on climate

July 7: Tillerson stunned by Trump on Russia

Aug 27: Tillerson says Trump ‘speaks for himself’ after Charlottesville

Oct. 1: Trump shoots down Tillerson on North Korea In an Oct. 1 tweet, Trump declared that the secretary was “wasting his time trying to negotiate with Little Rocket Man” — a nickname Trump coined for North Korean leader Kim Jong Un.

Oct 4: Tillerson calls Trump a ‘moron’

Oct. 15: Tillerson voices support for Iran deal

Nov. 30: Reports of Tillerson’s ouster emerge

Jan. 5: Tillerson says he plans to lead State through 2018

March 12: Tillerson says poisoning of ex-Russian spy will trigger response Tillerson’s willingness to take a harder line on Russia than his boss was on full display Monday

March 13: Trump fires Tillerson