Senator Joseph McCarthy's anti-communist crusade came to an end due to his investigations revealing communist infiltration in the US Army, his alienation of the audience through bullying, and Edward R. Murrow's exposé discrediting his accusations.
Senator Joseph McCarthy's anti-communist crusade was brought to an end by his hearings about communists in the US Army primarily because his investigations found that communists had infiltrated the military. This was a significant turning point as it showed that McCarthy's accusations were baseless and damaged his credibility.
In the nationally televised debate, McCarthy's bullying of witnesses alienated the audience, leading to a loss of public support. This ultimately prompted the Senate to condemn him for improper conduct, marking the decline of his power and authority.
Edward R. Murrow's exposé revealing the hollowness of McCarthy's accusations also played a crucial role in discrediting McCarthyism and further weakening McCarthy's position, leading to his official censure by the Senate and eventual downfall.
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