Assuming you mean US presidents, the answer would be Franklin D. Roosevelt.
There's has never been a United States President whose presidency lasted for twelve years longer than any other US President. Franklin Roosevelt's presidency lasted for 12 years, but that was, at most, only 4 years longer than any other President's.
Franklin D Roosevelt
Ford
He served longer than any other president.
Franklin D. Roosevelt
Franklin delano Roosevelt from 1933-1945
Gerald Rudolph Ford, Jr. (1913-2006)
FDR was the 32nd president, he served during the Great Depression and World War II, he served longer than any other president and he is probably second only to President Lincoln in terms of popularity.
why has the sun longer than any other star
Herbert Hoover
FDR was the 32nd president, he served during the Great Depression and World War II, he served longer than any other president and he is probably second only to President Lincoln in terms of popularity.
He served longer than any other president.