Which senator outwardly condemned McCarthy and tactics in his public crusade?

Senator Margaret Chase Smith was one of the first to publicly condemn Senator Joseph McCarthy and his tactics during the Red Scare. In her famous "Declaration of Conscience" speech delivered in 1950, she criticized McCarthy's methods and the atmosphere of fear he created, advocating for a more principled approach to addressing communism. Smith's stance was significant as it came from within her own party, highlighting the growing concerns about McCarthy's aggressive tactics.