Sarah Palin, seen here campaigning with husband Todd in Lakewood, Ohio, in 2008, started her political career talking about her Christian faith but has since backed off, says biographer Stephen Mansfield. RNS file photo by Tracy Boulian/The Plain Dealer

Sarah Palin, seen here campaigning with husband Todd in Lakewood, Ohio, in 2008, started her political career talking about her Christian faith but has since backed off, says biographer Stephen Mansfield. RNS file photo by Tracy Boulian/The Plain Dealer