1964 File Photo of Billy Graham at Legion Field in Birmingham, Ala. RNS photo by Billy Adams/The Birmingham News

You’ve heard of evangelicals, but just who are they?

(RNS) Evangelicals are all over the news, but just who are these Christians? “Actually, that's a question, I'd like to ask somebody, too,” evangelist Billy Graham once said. Here's a primer about these religious types, their history, faith and politics. By Peggy Fletcher Stack.