The anti-communist investigations of the House Committee which started in the 1940's are often associated with
McCarthyism, although
Joseph McCarthy himself (as a
U.S. Senator) had no direct involvement with the House committee
Actually McCarthy came to power in the 1953 when he became Chairmen of the Permanent Subcommittee on Investigations of the Senate Government Operations Committee, the year Eisenhower became president. However, his power was short lived as he was censured by Senate in 1954. He died in 1957, 4yrs before Kennedy took office. Joseph McCarthy was a life long republican and a champion of the party's far right.
The irony of the McCarthy phenomenon, as recent studies of American communism have made abundantly clear, is that Joe McCarthy burst into national prominence with charges about spies and fifth columnists at the very moment when the threat of internal subversion in the executive branch was on the wane, if not entirely extinguished. It would take President, Dwight Eisenhower, to convince the country of this fact. And as we have seen, given McCarthy's continued insistence that "reds," "pinks," and fellow travelers were compromising American national security, it was no simple task. Today, many far right republicans still see McCarty as a hero.