[cnn-photo-caption image=http://i2.cdn.turner.com/cnn/2011/images/08/30/costello_vert.jpg width=200 height=230 align="right"] From CNN's Carol Costello: According to a new CNN/ORC poll, Rick Perry is now leading the pack of Republican presidential contenders. The man trailing Perry: Mitt Romney. Perry is a Christian who is vocal about his religious beliefs and Romney is a Mormon. Perry's beliefs resonate loudly with conservative Christians, … Continue reading Talk Back: Should a candidate's religion matter?