A really good series you can watch online that exposes just how horrible Wilson was is is the “The Great War” on PBS (of all places).
The series is focused on the U.S. involvement in WWI, but what Wilson did during that time was a real eye-opener. On entering office, he purged all black Federal workers from their jobs or re-segregated offices if he wasn’t able to fire them. He started a massive government propaganda office that spoon-fed the press with pro-war and anti-German hysteria. His administration than basically made it an act of sedition to criticize the government’s war effort in any fashion.
The PBS mini-series on the Great War focusses quite a bit on the pro-war propaganda efforts as well as the clampdown on any dissent against the war. It is real history, but it sounds much like the hypothetical world in the novel “In Can’t Happen Here”.
http://www.pbs.org/wgbh/americanexperience/films/great-war/
https://en.wikipedia.org/wiki/Sedition_Act_of_1918
https://www.theatlantic.com/politics/archive/2015/11/wilson-legacy-racism/417549/
I can't recommend that series enough. I learned a lot I didn't know about WWI from it.