The following day, Grant, feeling betrayed by Sumner, retaliated by ordering the dismissal of Sumner's close friend John Lothrop Motley, Ambassador to Britain. By autumn, Sumner's personal hostility to the President was public knowledge, and he blamed the Secretary of State for failing to have resigned, rather than let Grant have his way. The two men, friends until then, cooled into bitter enemies. In December 1870, still fearful that Grant meant to acquire Santo Domingo somehow, Sumner gave a fiercely critical speech accusing the President of usurpation and Babcock of unethical conduct. Already Grant, supported by Fish, had initiated a campaign to depose Sumner from the chairmanship of the Senate Foreign Relations Committee. Although Sumner stated he was an "Administration man," in addition to having stopped Grant's Dominican Republic treaty attempt, Sumner had defeated Grant's full repeal of the Tenure of Office Act, blocked Grant's nomination of Alexander Stewart as U.S. Secretary of Treasury, and been a constant harassing force pushing Reconstruction policies faster than Grant had been willing to go. Grant resented Sumner's superiority of manner, as well. Told once that Sumner did not believe in the Bible, the President is supposed to have said that he was not surprised: "He didn't write it." As the rift between Grant and Sumner increased, Sumner's health began to decline. When the 42nd U.S. Congress convened on March 4, 1871, Senators affiliated with President Grant, known as "New Radicals" voted to oust Sumner from the Senate Foreign Relations Committee chairmanship.