Joseph mccarthy gained public attention by defeating dwight eisenhower in the 1956 election. defeating dwight eisenhower in the 1956 election. criticizing the supreme court ruling in the rosenberg case. refusing to cooperate with a huac investigation. claiming to have a list of communists in the government.

Joseph McCarthy gained public attention by claiming to have a list of communists in the government. The last option is correct.

McCarthy was very known for accusing people of being communists in the army or the administration without any reliable evidence. His witch hunt began in 1950 in Wheeling (West Virginia) when he delivered a speeh called "enemies from within."

McCarthy was an American politician who served as a Republican U.S. Senator from the state of Wisconsin from 1947 until his death in 1957.

no one really purchased it themselves, it was all america, they had debates etc.