Jimmy Carter, the 39th US president, will be honored with a funeral at Washington National Cathedral before a second service and burial in his Georgia hometown. President Joe Biden will eulogize Carter, and all of Carter's living successors are expected to attend the funeral. The gathering of commanders in chief offers a moment of comity in a hyper-partisan era. Carter is remembered for his decency and using his work ethic to do more than obtain political power. The day of national mourning highlights both the continuity and conflicts across US administrations.