After rising through the ranks at ExxonMobil, Rex Tillerson served as President Trump’s secretary of state beginning in February 2017.
Upon Tillerson’s exit, President Trump tweeted that he “couldn’t get rid of him fast enough.”
Tillerson and the president clashed over North Korea, the Jerusalem embassy, accused the president of being unprepared in a meeting with Russian Vladimir Putin and there were rumored tensions as Jared Kushner closed in on Tillerson’s territory as secretary of state.
In an apparent rebuke at President Trump, Tillerson told graduates there was "a growing crisis in ethics and integrity."
He also said that Russian President Vladimir Putin was highly prepared for a June 2017 meeting with President Trump, while the American leader was not.