The deputy secretary of state of the United States is the principal deputy to the secretary of state. If the secretary of state resigns or dies, the deputy secretary of state becomes acting secretary
John N. Irwin, II
Kenneth Rush 1977
Robert S. Ingersoll
Charles W. Robinson
Christopher Landau
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Christopher Thomas Landau is an American lawyer and diplomat serving as the United States deputy secretary of state since 2025. He previously served as the United States ambassador to Mexico from 2019
United States Deputy Secretary of State
…United States Deputy Secretary of State Seal of the Department of State Flag of the deputy secretary of state Incumbent Christopher Landau since March 25, 2025 Department of State Reports to U.S. Secretary of State Seat Washington, D.C. Appointer The president with Senate advice and consent…
Landau being sworn in as ambassador to Mexico by Justice Clarence Thomas, with U.S. Secretary of State Mike Pompeo looking on
Official portrait as ambassador to Mexico