In 1919 the Senate rejected the Treaty of Versailles, which formally ended World War I, in part because President Woodrow Wilson had failed to take senators' objections to the agreement into consideration. They have made the French treaty subject to the authority of the League, which is not to be tolerated.
Both Wilson and Roosevelt raised the ire of big business with a series of a major regulatory reforms. Roosevelt famous policy of "trust-busting" broke up major railroad, oil and steel conglomerates, according to the National Park Service.