3. House Un-American Activities Committee (HUAC)
While McCarthy dominated the Senate, the House Un-American Activities Committee (HUAC) became notorious in the House of Representatives. HUAC led high-profile investigations into alleged communist subversion, targeting Hollywood figures, labor unions, and even educators. The committee’s public hearings turned personal beliefs into public controversies, pushing many to name colleagues and friends. HUAC’s relentless pursuit of supposed “un-American” activities cemented its role as a driving force behind the widespread climate of suspicion.



