President Joe Biden fell on stage at the Air Force Academy Thursday afternoon, sparking looks of concern from onlookers there for the school’s annual graduation ceremony. Biden arrived at the academy, north of Colorado Springs, to make a commencement address for graduating cadets. On stage, the president praised the diversity of the academy and heralded the next generation of Air Force and Space Force officers. But during the end of the ceremony, the 80-year-old Biden turned to walk across the stage and tripped. An Air Force officer and two members of the U.S.