Enshrined in our Constitution and etched into our currency, religion is inextricable from the fabric of American political and social life. The ubiquity of religion in our national history has also made it an elusive, at times contradictory, force in this country’s growth—one that is associated with freedom and tolerance as often as it is with censure and control. Catherine Brekus, professor of American religious history at Harvard Divinity School, joins David Rubenstein to discuss the comple...