← Chronicle · Confirmation · January 28, 2025

Sean Duffy Confirmed and Sworn In as Secretary of Transportation

Sean Duffy was confirmed by the Senate and sworn in as Secretary of Transportation on January 28, 2025 — among the first cabinet secretaries seated in the second Trump administration.

The mission that started here is the transportation portfolio: air traffic control modernisation is his signature effort, carried in this site’s research files alongside the $30 billion Modern Skies Act, with the department’s road, rail, and aviation safety remit behind it. His later tenure also included a stint as acting NASA administrator, which ended in December 2025.

Sources: Confirmation and swearing-in date banked in this site’s research cluster B (U.S. Department of Transportation). No vote margin is stated: the research files do not carry one, and this chronicle does not publish figures it has not banked.