David Pekoske

David Pekoske is an American public servant who spent three decades in the United States Coast Guard before moving to senior positions within the Department of Homeland Security (DHS). Born on May 5, 1955, he rose through a series of operational and staff assignments that culminated in his appointment as vice commandant of the Coast Guard. In 2017, President Donald Trump nominated him to lead the Transportation Security Administration (TSA), a role he held until early 2025. During periods of transition within DHS, Pekoske served twice as acting deputy secretary and briefly as acting secretary of homeland security in January 2021 while the Senate confirmed Alejandro Mayorkas.

Early life and career

David Peter Pekoske entered the world on May 5, 1955, in Meriden, Connecticut. He pursued a technical education at the United States Coast Guard Academy in New London, where he earned a Bachelor of Science degree in ocean engineering. His academic journey continued with graduate studies; in 1989 he completed a Master of Public Administration at Columbia University’s School of International and Public Affairs. Eight years later, in 1997, he obtained a Master of Business Administration from the MIT Sloan School of Management.

Pekoske’s military career spanned thirty‑three active‑duty years, during which he served on the United States’ west, gulf, east coasts and the Great Lakes. His operational focus was primarily within the ashore community, while his staff responsibilities encompassed strategic planning, program analysis, and budget development. Early command experience included leading the Coast Guard Group/Marine Safety Office—now known as Sector—Long Island Sound from 1999 to 2001.

From 2001 to 2004, Pekoske served as Executive Assistant to the Commandant of the Coast Guard, a role that placed him at the center of senior leadership decision‑making. His flag officer assignments were extensive: he commanded Pacific Area/Coast Guard Defense Forces West in Alameda, California, overseeing operations across an area of more than 73 million square miles throughout the Pacific Basin and Far East. Prior to that, he held the position of Assistant Commandant for Operations at Coast Guard Headquarters, where he managed operational policy and execution.

Between 2004 and 2006, Pekoske commanded First Coast Guard District/Maritime Defense Command One in Boston, Massachusetts. His final appointment before retirement was as vice commandant of the United States Coast Guard, serving from August 7, 2009 to May 24, 2010. In that capacity he acted as second‑in‑command under Admiral Thad Allen, executing the commandant’s strategic intent and managing internal governance while also serving as the component acquisition executive.

In addition to his operational duties, Pekoske contributed to the Coast Guard Academy’s governance as a member of its Board of Trustees from 2006 to 2008. His career earned him numerous decorations, including two Homeland Security Distinguished Service Medals, two Coast Guard Distinguished Service Medals, two Legions of Merit, five Meritorious Service Medals, and several other commendations.

Cabinet tenure

Pekoske’s transition to the civilian federal cabinet began in 2017. On June 5, 2017 President Donald Trump announced his nomination as the seventh Administrator of the Transportation Security Administration (TSA). The United States Senate confirmed him on August 3, 2017, and he was sworn into office on August 10, 2017. In that role, Pekoske oversaw security operations across all U.S. transportation systems, including aviation, rail, maritime, and highway.

In May 2022 President Joe Biden nominated him for a second five‑year term as TSA Administrator. The Senate confirmed the nomination on September 15, 2022 by a 77–18 vote; between nomination and confirmation Pekoske served in an acting capacity. He continued to lead the TSA until January 20, 2025, when he was removed from office.

During his tenure at DHS, Pekoske also filled temporary leadership positions that bridged gaps between permanent appointments. On April 11, 2019 Acting Secretary Kevin McAleenan designated him as the senior official performing the duties of deputy secretary while he remained TSA Administrator. Day‑to‑day TSA operations during this period were overseen by acting deputy administrator Patricia Cogswell. The arrangement ended on November 13, 2019 when Ken Cuccinelli was appointed Acting Deputy Secretary; Pekoske returned to his primary responsibilities at the TSA.

Pekoske’s second stint as acting deputy secretary began on January 20, 2021 and continued until the Senate confirmed John Tien. During this period he managed DHS operations while awaiting the appointment of a permanent deputy secretary.

The most prominent temporary role came when President Joe Biden appointed Pekoske as acting Secretary of Homeland Security from January 20, 2021 to February 2, 2021. His service coincided with the Senate confirmation and swearing‑in of Alejandro Mayorkas as the new permanent secretary. While acting in that capacity, the senior official performing TSA administrative duties was Darby LaJoye, TSA’s executive assistant administrator for security operations.

Pekoske’s cabinet service is marked by his ability to maintain continuity across different administrations and during periods of transition within DHS. His background in both operational command and strategic planning informed his approach to managing large federal agencies.

Legacy

David Pekoske’s career reflects a trajectory that bridged military leadership, strategic policy development, and civilian agency management. As vice commandant of the Coast Guard, he oversaw internal governance and acquisition processes during a period of significant organizational change. His subsequent appointment as TSA Administrator placed him at the helm of national transportation security for eight years, spanning the administrations of both President Trump and President Biden.

In his acting roles within DHS—first as deputy secretary and later as secretary—Pekoske provided stability during critical transition periods. These appointments underscored a recognition of his experience in managing complex operations and coordinating across multiple agencies. His service earned him several high‑level decorations, including the Homeland Security Distinguished Service Medal and the Coast Guard Distinguished Service Medal, reflecting acknowledgment from both military and civilian leadership.

Pekoske’s legacy is characterized by a consistent emphasis on operational excellence, strategic oversight, and interagency coordination. He exemplifies the type of career public servant who can navigate between military command structures and civilian federal agencies while maintaining continuity of mission during times of change. His contributions to transportation security policy and homeland defense operations continue to influence the structure and priorities of DHS today.