President Donald Trump has signed a proclamation to honor the memory of Charlie Kirk, directing that the U.S. flag be flown at half-staff at all federal buildings, military installations, and diplomatic facilities through September 14, 2025. The order includes the White House and all U.S. embassies abroad. The proclamation, issued under Trump’s presidential authority, cites the need to “mark respect for the memory of Charlie Kirk” and specifies the duration of the tribute. The flag at the White House was lowered to half-staff on September 10, 2025, as part of the observance.