How did Senator Joseph McCarthy finally contribute to his own downfall?

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Senator Joseph McCarthy contributed to his own downfall when he took on the U.S. Army in front of millions of television viewers. His bullying tactics and lack of evidence for his accusations led to public disapproval and loss of support from his fellow senators. The televised hearings exposed his aggressive and unethical behavior, leading to his eventual censure by the Senate in 1954.

How Did Senator Joseph McCarthy Finally Contribute to His Own