JD Vance made headlines a few weeks ago by invoking Huey Long while addressing a crowd in Middletown, Ohio. Long, a Depression-era Democratic senator and governor of Louisiana, was known for a folksy and fiery speaking style that combined traditionalism, populism, and socialism. He sought to mobilize the common man by promising massive economic redistribution and denouncing wealthy elites. Vance called Long “a great southern populist” whose goal…