Ronald D. Johnson

Ronald D. Johnson
Official portrait, 2025
United States Ambassador to Mexico
Assumed office
May 19, 2025
PresidentDonald Trump
Preceded byKen Salazar
United States Ambassador to El Salvador
In office
September 6, 2019 – January 20, 2021
PresidentDonald Trump
Preceded byJean Elizabeth Manes
Succeeded byWilliam H. Duncan
Personal details
BornRonald Douglas Johnson
PartyRepublican
Alma materUniversity of the State of New York (BS)
National Intelligence University (MS)
Military service
AllegianceUnited States
Branch/serviceUnited States Army
Years of service1971–1998
RankColonel
UnitAlabama Army National Guard
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Ronald Douglas Johnson is an American diplomat who is serving as the United States ambassador to Mexico. Johnson served as the United States ambassador to El Salvador from 2019 to 2021. He was appointed ambassador by President Donald Trump on July 3, 2019. At the time of his appointment, he was serving as the Central Intelligence Agency’s Science and Technology Liaison to the U.S. Special Operations Command, based in Tampa, Florida. On December 10, 2024, Johnson was selected by Trump to serve as the United States Ambassador to Mexico during his second term.