I'm fascinated by what a Huey Long presidency would have looked like in the 1930s-40s. The man never publicly expressed such views, but he was certainly anti-Semitic like all populist politicians of this time. Would Huey Long have left the Jews alone or can we go so far as to imagine pogroms in America?
Long was absolutely not an anti-Semite. Period.
"Although often denounced as a fascist, Long was not anti-Semitic, nor any more anti-Communist than most politicians at the time. When asked about common comparisons between him and
Adolf Hitler, Long replied "Don't compare with that so-and-so. Anybody that lets his public policies be mixed up with religious prejudice is a plain God-damned fool." and later commented "I don't know much about Hitler. Except that last thing, about the Jews. There has never been a country that put its heel down on the Jews that ever lived afterwards."
[16] Several of Long's political and personal friends were Jews, such as
Abraham Shushan and
Seymour Weiss. Additionally, Long's hostile attitude to corporations was not compatible with fascism.
Arthur Schlesinger, Jr. noted that "Long's political fantasies had no tensions, no conflicts, except of the most banal kind, no heroism or sacrifice, no compelling myths of class or race or nation."
[17]"
https://en.wikipedia.org/wiki/Political_views_of_Huey_Long
(Yes, Gerald L. K. Smith, a Long supporter, made a name for himself as an anti-Semite, but that was after Long's death.)
More generally, the whole idea of Long as a "fascist" is IMO misguided. It may be useful here to quote the judgment of James Weinstein: "Of all the 1930s radical politicians, Louisiana Governor Huey Pierce Long Jr. was by far the most successful. A charismatic figure, he is often mistakenly remembered as the first American dictator or the first great native fascist. As his biographer T. Harry Williams wrote, Long was in fact a uniquely democratic politician who had nothing in common with the dictators except their popularity. As a consistent champion of working people and an implacable enemy of the corporate monopolies and Eastern banks, he commanded one of the largest mass followings in the country. "
https://books.google.com/books?id=pYHeUBZzCDYC&pg=PT105