As defined by the old Confederacy, I’d say we’re a border state. We were quickly conquered by Union forces and Nashville became the most heavily fortified city in America to deter a Southern capture (though it was tried late in the war).
I’m more surprised that Dean would “come out” on this, especially if he is expected to run for Governor when the seat comes open in 2018. Putting himself on the far-left of the social spectrum won’t play well in this state.
By 2018 someone who’s against queers might not be able to win a democrat primary.