AP/Getty/Salon This week’s opening of the U.S. embassy in Jerusalem is another reminder that Sen. Margaret Chase Smith’s “Declaration of Conscience” speech, an early denunciation of the evils of McCarthyism in the 1950s, still remains politically relevant, particularly to the Republican Party in the age of Donald Trump. Smith decried the lack of leadership that she believed could result in “national suicide” and urged her Republican colleagues to maintain their political integrity and intellectual honesty: “I don’t want to see the Republican Party ride to political victory on the Four Horsemen of Calumny — Fear, Ignorance, Bigotry, and Smear.” Smith’s speech alludes to the “Four Horsemen” of Revelation 6:1-8.