It was the fear that a communist revolution would destroy capitalism and democracy in the U.S.
When bombs were mailed to government and business leaders, the public began to think that the communist we're going to take over, but General A. Mitchell Palmer took action to combat what is known to be called the "Red Scare"
Believed in keeping blacks "in their place", destroying saloons, opposing unions, and driving Roman Catholics, Jews, and foreign born people out of their country.
Eventually it's criminal activity led to a decrease in power