During his first 18 months as a U.S. senator, David Perdue had not made much of a splash on the national scene. He was just another backbencher in a Senate dominated by bitter fights between party leaders. Perdue had his breakout moment last week when the Republican freshman offered up a religious admonition to conservative Christian activists at a Faith & Freedom Coalition conference in Washington, D.C. He urged attendees to pray for President Barack Obama and added this biblical reference: “I think we should pray for Barack Obama, but we need to be very specific.