Taft considered himself a progressive because of his deep belief in the law as the scientific device that should be used by judges to solve society's problems. Taft proved a less adroit politician than Roosevelt and seemed to lack the energy and personal magnetism of his mentor, not to mention the publicity devices, the dedicated supporters, and the broad base of public support that made Roosevelt so formidable. When Roosevelt realized that lowering the tariff would risk severe tensions inside the Republican Party, pitting producers (manufacturers and farmers) against department stores and consumers, he stopped talking about the issue. Taft ignored the risks and tackled the tariff boldly, on the one hand encouraging reformers to fight for lower rates, and then on the other hand cutting deals with conservative leaders that kept overall rates high. The resulting Payne-Aldrich Tariff Act of 1909 was too high for most reformers...
Unlike Roosevelt, Taft never attacked business or businessmen in his rhetoric. However, he was attentive to the law, so he launched 90 antitrust suits, including one against the country's largest corporation, U.S. Steel, for an acquisition that Roosevelt personally had approved. As a result, Taft lost the support of antitrust reformers (who disliked his conservative rhetoric), of big business (which disliked his actions), and of Roosevelt, who felt humiliated by his protégé.