Lynne Cheney has spent decades studying and admiring the nation's fourth president, James Madison. Her new book, "James Madison: A Life Reconsidered" is a labor of political admiration that began five years ago and culminated in a historical journey in which Madison, the father of the Constitution, also becomes a prophet of productive conservatism. ....She considers Madison the prophet of small government. He pushed for a strong central government early in his political career when he served in the early House of Representatives, but he started having some doubts. "Madison began to worry about too strong a government," Cheney told...