American politician who served as a Republican U.S. Senator from the state of Wisconsin from 1947 until his death in 1957. Claimed there were large numbers of Communists and Soviet spies and sympathizers inside the United States federal government and elsewhere. Granted almost unlimited powers to investigate alleged communist subversion in the government. Ultimately, his tactics and inability to substantiate his claims led him to be censured by the United States Senate. The practice of making accusations of disloyalty, subversion, or treason without proper regard for evidence. (The 1952 Arthur Miller play The Crucible used the Salem witch trials as a metaphor for McCarthyism, suggesting that the process of McCarthyism-style persecution can occur at any time or place. The play focused on the fact that once accused, a person had little chance of exoneration, given the irrational and circular reasoning of both the courts and the public. Miller later wrote: "The more I read into the Salem panic, the more it touched off corresponding images of common experiences in the fifties.“) An investigative committee of the United States House of Representatives. The committee's anti-Communist investigations lead to the Hollywood Blacklist. Blacklisted artists lost their jobs and were ostracised by the entertainment industry, some, like Charlie Chaplin, even fled America. (No direct involvement of McCarthy) Was a member of the American Communist Party in New York, for a year and a half in the 30s. Was called on by HUAC to identify Communists from that period under oath. He initially refused to provide names, but eventually named eight former Group Theatre members who he said had been Communists. Kazan later explained that he took "only the more tolerable of two alternatives that were either way painful and wrong" "On the Waterfront'' was, among other things, Kazan's justification for his decision to testify before the HUAC. In the film, when a union boss shouts, `You ratted on us, Terry,' the Brando character shouts back: `I'm standing over here now. I was rattin' on myself all those years. I didn't even know it.' That reflects what some feel was Kazan's belief that communism was an evil that temporarily seduced him, and had to be opposed." (Roger Ebert)