Add Axios as your preferred source to
see more of our stories on Google.
Marine One carrying President Trump departs from the Ellipse near the White House en route to Joint Base Andrews on Tuesday. Photo: Alex Wong/Getty Images
Federal aviation officials are investigating an air-safety incident involving President Trump's Marine One helicopter in Washington, D.C.
Why it matters: The incident comes as regulators work to improve safety in increasingly congested U.S. airspace, particularly around D.C.
