(J. Scott Applewhite | AP photo) Then-Vice President Joe Biden speaks during a luncheon for military women, active-duty service members and veterans, spouses and caregivers on Veterans Day, 2015, at the vice president's official residence at the Naval Observatory in Washington. Biden announced that Delaware's new National Guard headquarters in New Castle will be named for his late son, Beau Biden, a two-term attorney general who served in Iraq with the Delaware Army National Guard. Beau Biden died of brain cancer in May.