red-baiter

red-baiter (plural red-baiters)

1. (US) A person who practices red-baiting.
   • 2003 February 17, Leslie Feinberg, “'Lavender scare'!”, in Workers World‎^[1]:

     On Feb. 9, 1950, notorious red-baiter Sen. Joseph McCarthy (R-WI) waved a piece of paper before the cameras that he claimed contained a list of 205 "card-carrying Communists in the State Department."

• arbitered