When could a Republican President post WWII face significant opposition to renomination except Ford in '76? The Dems have had that problem since 1952, Kefauver vs. Truman, the four year drama culminating in Mar. 31, 1968: "I shall not seek, and shall not, accept a nomination for another term as your President." "... And the American people, swayed by the magic of the name, were dancing in the streets." '80 with Ted Kennedy vs. Carter. All Democratic Presidents since 1945 except Clinton have had to fight for renomination . Two lost. Can anyone explain why this is a Democratic phenomenon? I'd say because their tent is too large (esp post '68), but that's a view from the other side...