Trump orders US flags at half-mast for fallen Capitol officers

A memorial for Brian Sicknick, U.S. Capitol Police Officer who died from injuries following the U.S. Capitol building siege on Wednesday, is erected near the U.S. Capitol on January 10, 2021 in Washington, DC. A pro-Trump mob stormed and desecrated the U.S. Capitol on January 6 as Congress held a joint session to ratify President-elect Joe Biden's 306-232 Electoral College win over President Donald Trump. (Al Drago/Getty Images/TNS)

The White House lowered its U.S. flag to half-staff on Sunday, three days after a police officer died from injuries suffered while fending off supporters of President Donald Trump who stormed the Capitol building.