AUSTIN — The organizer of The Response, the massive Aug. 6 prayer rally initiated by Gov. Rick Perry, is calling on attendees to help register millions of conservative Christians, prompting questions about the group and Perry's claims the event was not political. Don Wildmon, founder of the American Family Association, sent an email Thursday thanking recipients for registering for The Response, which drew thousands of people to Reliant Stadium. "Today, I want to introduce you to Champion the Vote (CTV), a friend of AFA whose mission is to mobilize 5 million unregistered conservative Christians to register and vote according to...