Rex W. Tillerson
Reporting cited here
- documented
Rex Tillerson was sworn in as secretary of state on February 1, 2017, thanked Trump for the opportunity, and stated that he would serve the president.
Tillerson is sworn in as Trump's secretary of state · Served as secretary of state from February 2017 through March 2018
- documented
Trump announced Rex Tillerson's termination on March 13, 2018, saying they disagreed on issues and had different thinking; State Department history records Tillerson's appointment ending March 31, 2018.
Trump terminates Tillerson after policy differences · Former secretary of state