In 1768, John Witherspoon, Presbyterian leader of the evangelical Popular party faction in the Scottish Kirk, became the College of New Jersey's sixth president. At Princeton, he mentored constitutional architect James Madison; as a New Jersey delegate to the Continental Congress, he was the only clergyman to sign the Declaration of Independence. Although Witherspoon is often thought to be the chief conduit of moral sense philosophy in America, Mailer's comprehensive analysis of this founding father's writings demonstrates the resilience of his evangelical beliefs. Witherspoon's Presbyterian...