Some of the peoples it conquered didn't want to be ruled by the Incas and were rebellious, mainly, and it was so big that it couldn't keep the conquered in line very well.
Although this period has often been called the Era of Good Feelings due to its one-party dominance, in fact, Democratic-Republicans were deeply divided internally and a new political system was about to be created from the old Republican-Federalist competition that had been known as the First Party System.
Public pressure- states tried to regulate RR & trusts and SC ruled unconstitutional
Sherman Antitrust Act 1890- attempt by congress to appease country; had little impact
McKinley Tariff 1890- highest protective tariff every; didn’t really prevent monopolies and angered public
Interstate Commerce Act-1887-banned discrimination in rates between long and short hauls, required that RR publish their rate schedules and file them with the gov’t
Due to pressure by the American people to regulate corrupt businesses and monopolies congress passed several acts that limited particular industries, however these acts had little practical effect.