Senator Huey Long of Louisiana became a very popular anti-FDR figure. He essentially became a dictator off funded by his attacks on banks, oil companies, and utilities. He was very forceful and left his opponents with little power. He did however, set up hospitals, schools, lower utility rates, and revised tax codes in Louisiana.
He eventually proposed the Share-Our-Wealth-Plan which said that the Depression could be over if Congress would heavily tax the rich, coming up with some crazy numbers about how much money the government could pay each American family per year.