Who is best associated with the Second Red Scare's hunt for communists?

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Joseph McCarthy is best associated with the Second Red Scare's hunt for communists. He was a senator from Wisconsin who made unsubstantiated claims and accusations against individuals in government, entertainment industry, and other fields, accusing them of being communists or sympathizers. His tactics, known as McCarthyism, created a climate of fear and suspicion in the country and ruined many lives and careers.

Who Is Best Associated with the Second Red Scare's Hunt