What was evidence of the red scare that followed World War 1?

The Red Scare following World War I was characterized by widespread fear of communism and anarchism, fueled by the Bolshevik Revolution in Russia. Key evidence includes the Palmer Raids, where Attorney General A. Mitchell Palmer led a series of deportations and arrests targeting suspected radicals, and the rise of anti-immigrant sentiment as many associated immigrants with leftist ideologies. Additionally, labor strikes and social unrest were often framed as threats of communism, leading to heightened paranoia and the suppression of civil liberties.