Secretary of State Mike Pompeo (left) sits down for a meeting in Osaka, Japan, on June 28. At right is Michael McKinley, Pompeo’s de facto chief of staff. McKinley abruptly retired last week after a nearly four-decade career as an American diplomat.

Secretary of State Mike Pompeo (left) sits down for a meeting in Osaka, Japan, on June 28. At right is Michael McKinley, Pompeo’s de facto chief of staff. McKinley abruptly retired last week after a nearly four-decade career as an American diplomat.