The term world Christianity has been widely used since the publication of Philip Jenkins’s 2002 best seller The Next Christendom, but in popular usage it has tended to refer only to Christianity in the Global South. Though courses on world Christianity have proliferated, no one until Douglas Jacobsen has taken the care to delineate the contours of the entire global movement.
A few of the current candidates for president have remained members of the faith in which they were raised: Hillary Clinton (Methodist), Ben Carson (Seventh-day Adventist), and Rick Santorum (Catholic). Numerous other candidates have made a switch: Jeb Bush switched from the Episcopal to the Catholic Church. Rand Paul moved from the Episcopal Church to a Presbyterian church. Ted Cruz grew up in the home of lapsed Catholics until his father joined the Southern Baptists. Marco Rubio has migrated from the Catholic Church to Mormonism and back again to the Catholics, but sometimes goes with his Baptist spouse to her independent church. Bobby Jindal made the biggest switch: from the Hinduism of his youth to the Catholic faith (Newsweek, April 2).