Only kind of related, but I recently started reading "It Can't Happen Here" by Upton Sinclair Sinclair Lewis, and I had to put it down after like 30 pages because it was so creepily prescient. Like down to how the demagogue politician spoke.
The book was written in 1935.
Edit: before posting this, I was like "don't say Upton Sinclair, don't say Upton Sinclair " oops.