US President Donald Trump announced in a post on Monday that the American flag would be flown at half-staff across public buildings, grounds, military posts, and naval stations, amongst other locations, as a mark of respect in the memory of Pope Francis. He made the announcement in a post on his social media platform, Truth Social.

Trump said, "As a mark of respect for the memory of His Holiness Pope Francis, by the authority vested in me as President of the United States by the Constitution and the laws of the United States of America, I hereby order that the flag of the United States shall be flown at half-staff at the White House and upon all public buildings and grounds, at all military posts and naval stations, and on all naval vessels of the Federal Government in the District of Columbia and throughout the United States and its Territories and possessions until sunset, on the day of interment."