Answer:
The Cold War furthered the career of Senator Joseph McCarthy by providing him with a platform to promote his anti-communist agenda. During the early years of the Cold War, there was widespread fear and paranoia about the spread of communism in the United States, and McCarthy was able to exploit this fear to build support for his cause. In 1950, he claimed to have a list of 205 communists working in the State Department, and he used this claim to launch a series of investigations into alleged communist subversion in government and other institutions.
McCarthy's campaign against communism and alleged communist sympathizers made him a popular figure among many Americans, and he was able to use this popularity to gain power and influence in the government. He chaired the Senate Committee on Government Operations and the Permanent Subcommittee on Investigations, which allowed him to conduct investigations and hold hearings on alleged communist infiltration of the government and other institutions.
However, McCarthy's career came to an end in the mid-1950s when he was accused of abusing his power and engaging in unethical behavior during his investigations. He was censured by the Senate in 1954, which effectively ended his influence and power. McCarthy died in 1957, and his legacy remains controversial. While some still view him as a hero who fought against communism, others view him as a symbol of the dangers of political extremism and abuse of power.