A cause of McCarthyism was the fear that Communists wanted to take over the world, especially after China became Communist.
The effect of McCarthyism was that most Americans lived in a shadow of fear and suspicion.
McCarthyism was a movement against Communist infiltration in the United States and it was led by Senator McCarthy. It quickly gained traction thanks to fears of Communists taking over the United States like they did China.
Americans then began to suspect each other of Communism which led to the breakdown of many relationships.
This was only compounded when the Hollywood Ten were arrested and jailed for Communism because people thought that even Hollywood have been infiltrated.
Find out more on the Hollywood Ten at https://brainly.com/question/466220.
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