I’m not a historian and have not read history nearly as extensively as most people in this forum, but I thought the Herbert Hoover book “Freedom Betrayed” was excellent. Hoover is one of my least favorite presidents, but he was suspicious of FDR’s motives in regards to WWII from day 1. This book changed my opinion of FDR. Prior to reading this book, I thought FDR was a communist sympathizer. After reading the book, there is no doubt that FDR was a communist.