The presidency of Benjamin Harrison began on March 4, 1889, when Benjamin Harrison was inaugurated as President of the United States, and ended on March 4, 1893. Hallmarks of his administration include the McKinley Tariff, which imposed historic protective trade rates, and the Sherman Antitrust Act, which empowered the federal government to investigate and prosecute trusts. Due in large part to surplus revenues from the tariffs, federal spending reached one billion dollars for the first time during his term. Harrison's presidency saw the addition of six new states, more than any other president. In foreign affairs, Harrison vigorously promoted American exports, sought tariff reciprocity in Latin America, and worked to increase U.S. influence across the Pacific. Although Harrison had made no political bargains, his supporters had given many pledges upon his behalf. Concerning commerce, he said, 'If our great corporations would more scrupulously observe their legal obligations and duties, they would have less call to complain of the limitations of their rights or of interference with their operations.'