Congress wasn't on board but starting in 1936 Roosevelt started increasing the tax rate. Coinciding with Hitler's ascension into power.
The only thing Roosevelt needed was a trigger to get Congress on board. I'll leave it to the conspiracy nut cases to say Roosevelt knew about Pearl Harbor but didn't do a thing.
My dad who was born in 1911 from Springfield Ma obviously knew his history as well. He figured we were going to war again and enlisted prior to Pearl Harbor.