Who was Joseph McCarthy and did his senate committee "hunt " communists in the 1950s?

An American politician who served as a Republican U. S. Senator from the state of Wisconsin starting in 1947. He is known for alleging that numerous communists and Soviet spies and sympathizers had infiltrated the United States federal government, universities, film industry, and elsewhere. Ultimately, the smear tactics that he used led him to be censured by the U. S. Senate.