This controversial video describes an alleged plot, backed by corporate leaders to overthrow the left-leaning government of Franklin Delano Roosevelt.
During the 1934 investigation by the Special Committee on Un-American Activities (predecessor to HUAC), many questioned the veracity of the allegations by retired Marine Corps General Smedley Butler that a coup was imminent. No one was prosecuted.
At first, news media covered the story, but it was soon dismissed as not credible and even labelled a “gigantic hoax” by the New York Times.
But extensive excerpts from the committee report were never released and many believe that some sort of scheme had actually been afoot.
Here is a link to quotes and an introduction to the life and philosophy of General Smedley: https://blog.libertasbella.com/smedley-butler-quotes/