Good for Corbin!!! Some modern historians, politicians, and economists argue that the U.S. was effectively plutocratic for at least part of the Gilded Age and Progressive Era periods between the end of the Civil War until the beginning of the Great Depression.[17][18][19][20][21][22] President Theodore Roosevelt became known as the "trust-buster" for his aggressive use of antitrust law, through which he managed to break up such major combinations as the largest railroad and Standard Oil, the largest oil company.[23] According to historian David Burton, "When it came to domestic political concerns, TR's bête noire was the plutocracy."[24] In his autobiographical account of taking on monopolistic corporations as president, Roosevelt recounted: