Lou Engle is an American charismatic Christian leader, best known for his leadership of The Call, a program that hosts twelve-hour prayer rallies, and his association with prominent members of the Christian Right. Engle is a senior leader of the International House of Prayer and has assisted in the establishment of several smaller "houses" of prayer. Wikipedia*
On the C-SPAN Networks:
Lou Engle has one video in the C-SPAN Video Library; the first appearance was a 2008 News Conference.