What senator outwardly condemned McCarthys tactics in his public crusade?

Senator Margaret Chase Smith was one of the most notable figures to openly condemn Senator Joseph McCarthy's tactics during his anti-communist crusade. In her famous "Declaration of Conscience" speech delivered in 1950, she criticized McCarthy's methods, calling them un-American and detrimental to the principles of democracy. Smith's stance was significant as it highlighted the growing concern among some lawmakers regarding the impact of McCarthyism on civil liberties and political discourse.