Mike Pompeo, whom President Trump tapped Tuesday to replace Rex Tillerson as secretary of state, has an extraordinary résumé. He graduated at the top of his class at West Point. He served as a tank officer in Europe. He went to Harvard Law School.
He was a corporate lawyer who launched a successful aerospace business. He got elected to Congress as a Tea Party Republican from Kansas in 2010. For more than a year, he has run the CIA.
However, he has never been a diplomat, either by profession or temperament.