a person who approves of, or practices, McCarthyism: the practice of making unsubstantiated accusations of disloyalty or Communist leanings
Thanks to @RCdeWinter for tweeting the cartoon.)
a vociferous campaign against alleged communists in the US government and other institutions carried out under Senator Joseph McCarthy in the period 1950-4. Many of the accused were blacklisted or lost their jobs, though most did not in fact belong to the Communist Party.
The history behind ‘McCarthyism’ from Spartacus Educational
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