RE: The last real conservative Democrat I am aware of was the late Congressman Larry McDonald D-GA who was brutally murdered by the Communists on board KAL Flight 007 in 1983.
Would you consider Zell Miller a conservative Democrat?
Compared to most Democrats, yes he was fairly conservative. But I would still vote for a more conservative leaning Republican over him. But he is long gone anyways. Most people in the deep South now vote GOP except for blacks.