He is probably the first Secretary of State ever fired by tweet. This morning Rex Tillerson was fired by the president, who wants to replace him with current CIA director Mike Pompeo. Pompeo is a partisan Trump licker.
Why was he fired? Maybe because he was the only one in the administration who publicly blamed Russia for the attack of the spy and his daughter in England. Nobody else in the administration dared mention Russia.
Buckle up, folks. As the walls close in on the Mueller investigation, things like this are going to happen more and more.