I believe there are more instances of the abridgement of freedom of the people by gradual and silent encroachments by those in power than by violent and sudden usurpations.

He served as a politician much of his adult life. Like most of his contemporaries Madison changed his political views during his life. As president (1809–17) after the failure of diplomatic protests and a trade embargo against Great Britain he led the nation into the War of 1812.