Huey Long (1893-1935) was one of the most extraordinary American politicians, simultaneously cursed as a dictator and applauded as a benefactor of the masses. A product of the poor north Louisiana hills, he was elected governor of Louisiana in 1928, and proceeded to subjugate the powerful state political hierarchy after narrowly defeating an impeachment attempt. The only Southern popular leader who truly delivered on his promises, he increased the miles of paved roads and number of bridges in Louisiana tenfold and established free night schools and state hospitals, meeting the huge costs by...