" The breadth of his hands-on experience at different levels of government, from the state legislature to the police department to the governor’s chair, had sensitized Roosevelt to the hidden dangers of the age: the rise of gigantic trusts that were rapidly swallowing up their competitors in one field after another, the invisible web of corruption linking political bosses to the business community, the increasing concentration of wealth and the growing gap between the rich and the poor, the squalid conditions in the immigrant slums, the mood of insurrection among the laboring classes. "

― Doris Kearns Goodwin , Leadership: In Turbulent Times