24. William H. Taft
Despite his pledge, Taft lacked Roosevelt’s expansive view of presidential power, as well as his charisma as a leader and his physical vigor. (Always heavy, Taft weighed as much as 300 pounds at times during his presidency.) Though he was initially active in “trust-busting,” initiating some 80 antitrust suits against large industrial combinations–twice as many as Roosevelt–he later backed away from these efforts, and in general aligned himself with the more conservative members of the Republican Party.