In August 2015, Carter had a small cancerous mass removed from his liver. The following year, he announced that he needed no further treatment, as an experimental drug had eliminated any sign of cancer.
Carter celebrated his most recent birthday in October with family and friends in Plains, the tiny Georgia town where he and his wife, Rosalynn, were born in the years between World War I and the Great Depression.
The Carter Center, which the 39th president and the former first lady established after their one White House term, last year marked 40 years of promoting democracy and conflict resolution, monitoring elections, and advancing public health in the developing world.
James Earl Carter Jr won the 1976 presidential election after beginning the campaign as a little-known, one-term Georgia governor. His surprise performance in the Iowa caucuses established the small, Midwestern state as an epicenter of presidential politics. Carter went on to defeat Ford in the general election, largely on the strength of sweeping the South before his native region shifted heavily to Republicans.