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President Lyndon Johnson delivers his "We Shall Overcome" address to Congress, urging passage of voting rights legislation, at the U.S. Capitol in Washington, D.C., on March 15, 1965. (LBJ Library/Cecil Stoughton)
President Lyndon Johnson delivers his "We Shall Overcome" address to Congress, urging passage of voting rights legislation, at the U.S. Capitol in Washington, D.C., on March 15, 1965. (LBJ Library/Cecil Stoughton)