He is the editor of seven books, including Movie-Based Illustrations for Preaching & Teaching, which sparked his ongoing love affair with film and his weekly WND column, "Popcorn and a (world)view."The months of arguments over President Obama’s eligibility to occupy the Oval Office – based on the U.S. Constitution’s requirement that the chief executive be a “natural-born” citizen – have been fueled both by the president’s decision to withhold his original long-form birth certificate, thereby leaving some questions unanswered, and by arguments over just exactly what is a “natural-born” citizen.