What was controversial about McCarthy and tactics?

Joseph McCarthy was controversial for his aggressive and often unfounded accusations of communism during the Red Scare in the early 1950s. His tactics included public hearings and interrogations that often relied on fear-mongering rather than evidence, leading to the harassment and unjust treatment of many individuals, including government officials and entertainers. McCarthy's approach raised concerns about civil liberties and the potential for abuse of power, ultimately leading to his censure by the Senate in 1954.