The U.S. is remembering the lives taken and others reshaped by 9/11 on an anniversary laced with presidential campaign politics.

President Joe Biden, former President Donald Trump, and Vice President Kamala Harris stood together Wednesday at ground zero.

Sept. 11 — the date when hijacked plane attacks killed nearly 3,000 people in 2001 — falls in the thick of the presidential election season every four years, and it comes at an especially pointed moment now.