Missibama?

The states of Mississippi and Alabama have both had voting rights in 44 federal elections (Alabama had voting rights a 45th time, in 1868, while Mississippi was still under a Reconstruction government).

The two states have cast their electoral votes for the same presidential candidate in 42 of those 44 elections.

The last time they completely disagreed? 1840.

(In 1960, Mississippi cast all of its electoral votes for the states rights' candidate, Richard F. Byrd, while Alabama cast only half its votes for Byrd.)