Cox resigned in the autumn. As Secretary of the Interior he had charge of the Patent Office, Census Bureau, and Indian Service, all of them requiring many appointments. He had attempted to introduce a sort of civil service examination for applicants and had vehemently protested against political assessments levied on clerks in his department. He especially offended Senators Cameron and Chandler, party chieftains who had the ear of the President. General Cox stated the matter plainly: "My views of the necessity of reform in the civil service had brought me more or less into collision with the plans of our active political managers and my sense of duty has obliged me to oppose some of their methods of action." These instances reveal how the party chieftains insisted inexorably upon their demands. To them the public service was principally a means to satisfy party ends, and the chief duty of the President and his Cabinet was to satisfy the claims of party necessity. General Cox said that distributing offices occupied "the larger part of the time of the President and all his Cabinet." General Garfield wrote (1877): "One-third of the working hours of Senators and Representatives is hardly sufficient to meet the demands made upon them in reference to appointments to office." By the side of the partizan motives stalked the desire for gain. There were those to whom parties meant but the opportunity for sudden wealth. The President's admiration for commercial success and his inability to read the motives of sycophants multiplied their opportunities, and in the eight years of his administration there was consummated the baneful union of business and politics. During the second Grant campaign (1872), when Horace Greeley was making his astounding run for President, the New York Sun hinted at gross and wholesale briberies of Congressmen by Oakes Ames and his associates who had built the Union Pacific Railroad, an enterprise which the United States had generously aided with loans and gifts.