Elaine Duke

Elaine Costanzo Duke is an American civil servant who served the United States Department of Homeland Security in several senior capacities during the Trump administration. Born on June 26, 1958, she entered federal service after completing graduate studies and spent more than three decades working within the department before being appointed Deputy Secretary by President Donald Trump in early 2017. Duke assumed the role of Acting Secretary following John F. Kelly’s transition to White House Chief of Staff and continued to lead the agency until Kirstjen Nielsen was confirmed later that year. She retired from her deputy position in April 2018, after which she was elected a fellow of the National Academy of Public Administration.

Early life and career

Elaine Costanzo Duke was born in Ohio to parents Francesco (Frank) Costanzo and Concetta Scherma. Her maternal grandparents emigrated from Aidone, Sicily, while her paternal lineage traces back to Coreno Ausonio in Italy’s Lazio region. She earned a Bachelor of Science degree in business management from New Hampshire College—now Southern New Hampshire University—and later obtained a Master of Business Administration from Chaminade University of Honolulu.

Before joining federal service, Duke established and operated Elaine Duke & Associates, LLC, a consulting firm based in Woodbridge, Virginia. Her experience in the private sector complemented her subsequent public‑service career. In July 2008, she was appointed Under Secretary of Homeland Security for Management, serving under Presidents George W. Bush and Barack Obama until April 2010. During this tenure, Duke oversaw administrative functions across the department, drawing on more than 28 years of experience within federal agencies.

Cabinet tenure

On January 30, 2017, President Donald Trump announced his intent to nominate Duke as United States Deputy Secretary of Homeland Security. Her nomination proceeded through a hearing before the Senate Committee on Homeland Security and Governmental Affairs on March 8, 2017, and was reported out of committee on March 15, 2017. The full Senate confirmed her appointment on April 4, 2017, by an 85–14 vote. Duke officially assumed the deputy secretary position on April 10, 2017.

Duke’s service as Deputy Secretary coincided with a period of heightened focus on national security and immigration policy. On July 28, 2017, John F. Kelly was named White House Chief of Staff; consequently, Duke stepped into the role of Acting Secretary of Homeland Security on July 31, 2017. She maintained this acting position until December 6, 2017, when Kirstjen Nielsen’s confirmation concluded her temporary leadership.

During her time as Acting Secretary, Duke confronted a major natural disaster: Hurricane Maria, which struck Puerto Rico in September 2017. In response to the crisis, she authorized a ten‑day waiver of the Jones Act—a federal maritime law that requires goods shipped between U.S. ports to be transported on vessels built, owned, and operated by Americans. The waiver facilitated the delivery of foreign aid to the island. Duke also addressed the public’s perception of the federal response; after describing the situation as a “good news story” during a White House briefing, she clarified her remarks following criticism from Puerto Rican officials, emphasizing that additional work was necessary.

In February 2018, Duke announced her intention to retire from the deputy secretary role in April. She concluded her tenure on April 15, 2018, after serving more than thirty years within the federal government. The same year, she was elected a fellow of the National Academy of Public Administration, recognizing her contributions to public service.

Following her departure from active duty, Duke participated in interviews and commentary. In a July 2020 interview with *The New York Times*, she expressed criticism of the Trump administration’s approach and rhetoric on immigration matters, reflecting on policy decisions made during her tenure.

Legacy

Elaine Duke’s career is marked by extensive experience across multiple administrations, providing continuity within the Department of Homeland Security’s management structure. Her leadership roles—spanning from Under Secretary for Management to Deputy Secretary and Acting Secretary—positioned her at the center of key operational decisions, including disaster response strategies during Hurricane Maria.

Duke’s decision to waive the Jones Act in the wake of Puerto Rico’s devastation demonstrated a willingness to adapt regulatory frameworks to meet emergent humanitarian needs. Her subsequent engagement with local officials on the island underscored an emphasis on coordination between federal agencies and territorial authorities.

Beyond her administrative duties, Duke’s election as a fellow of the National Academy of Public Administration highlights recognition by peers for her expertise in public sector management. Her long tenure within the department contributed to institutional knowledge that supported policy implementation across successive presidential administrations.

In sum, Elaine Costanzo Duke’s service reflects a career dedicated to federal homeland security operations and crisis management. Her roles as Deputy Secretary and Acting Secretary placed her at pivotal junctures of national policy execution, while her post‑government recognition affirms her impact on public administration practices.