“Perhaps the most representative document of [the right-wing's] McCarthyist phase was a long indictment of Secretary of State George C. Marshall, delivered in the Senate on June 14, 1951, by Senator McCarthy… McCarthy pictured Marshall as the focal figure in a betrayal of American interests stretching in time form the strategic plans for the Second World War to the formulation of the Marshall Plan… ‘His decisions maintained with great stubbornness and skill, always and invariably serv[ed] the world policy of the Kremlin.’ …And, above all, the sharp decline in America’s relative strength from 1945 to 1951 did not ‘just happen,’ it was ‘brought about, step by step, by will and intention,’ the consequence not of mistakes but of a treasonous conspiracy, ‘a consipracy on a scale so immense as to dwarf any previous such venture in the history of man.’
“Today the mantle of McCarthy has fallen on the retired candy manufacturer Robert H. Welch, Jr, who is less strategically placed but whose well-organized following in the John Birch Society has a strong influence. A few years ago Welch proclaimed that ‘Communist influences are now in almost complete control of our Federal Government.’ …As for [Dwight] Eisenhower himself, Welch characterized him… as ‘a dedicated conscious agent of the Communist conspiracy.’”
–Richard Hofstadter, The Paranoid Style in American Politics, 1964.
“From the Republican side the strongest attack on McCarthy came from Senator Margaret Chase Smith of Maine, who in June of 1950 stood up in the Senate to denounce McCarthy and to plead with her fellow Republicans to refrain from joining the McCarthy bandwagon just for the purpose of wresting power from the Democrats. ‘The nation sorely needs a Republican victory,’ she told them, ‘but I don’t want to see the Republican Party ride to victory on the Four Horses of Calumny–Fear, Ignorance, Bigotry, and Smear.’”
–J. Ronald Oakley, God’s Country: America in the Fifties, 1986.