Any sane person would think that after the immoral acts of the Republican Party over the last decade, the last thing they would want to do is keep up their God Talk when it comes to defending themselves. There is nothing holy or moral about the GOP. Their display of governance and treatment of anyone who doesn't agree with them is the farthest thing from Christian anyone can find.
Yet Mark Sanford, the same guy who voted to impeach Clinton, is now insisting he's not going to resign because in the Bible, King David didn't resign after his affair. Sadly there are many self-labeled Christian conservatives holding a picture of Reagan watching Sanford on their Fox News teevee set and saying Amen.