The political views of Huey P. Long have presented historians and biographers with some difficulty. While most say that Louisiana Governor and Senator Huey Long was a populist, little else can be agreed on. Huey Long's opponents, both during his life and after, often drew connections between him and his ideology and far-left and right political movements, comparing it to everything from European Fascism, Stalinism, and later McCarthyism. When asked about his own philosophy, Long simply replied: "Oh, hell, say that I’m sui generis and let it go at that." Writer Robert Penn Warren described him as a "remarkable set of contradictions."