Final answer:
The nationwide impact of McCarthy can be considered the main reason due to several factors such as his power and authority in the Senate, the exposure of his tactics during the Army-McCarthy Hearings, and the public's fatigue with his wild accusations lacking evidence.
Step-by-step explanation:
The nationwide impact of McCarthy can be considered the main reason due to several factors:
- McCarthy gained power and authority in the Senate by making accusations against alleged Communists, leading to a widespread fear of communism in American society.
- However, McCarthy's tactics of intimidation and bullying were publicly exposed and condemned during the televised Army-McCarthy Hearings in 1954, which resulted in a decline in his support and ultimately led to the end of his political career.
- The public grew tired of McCarthy's wild accusations that lacked credible evidence, and events like the death of Joseph Stalin and the end of the Korean War shifted the focus away from McCarthy's anti-communist campaign.
These factors combined to diminish the influence of McCarthy and reduce the impact of McCarthyism on American society.