Barack, and Jesus dying for his sins

I'll never understand why it is that when a conservative talks about Christ, he's obviously nutters. Yet, when a Democratic president talks about Christ... well, isn't that special?
From the New York Times:

“I’m a Christian by choice,” the president said. “My family, frankly, they weren’t folks who went to church every week. My mother was one of the most spiritual people I knew but she didn’t raise me in the church, so I came to my Christian faith later in life and it was because the precepts of Jesus Christ spoke to me in terms of the kind of life that I would want to lead. Being my brothers and sisters’ keeper, treating others as they would treat me, and I think also understanding that Jesus Christ dying for my sins spoke to the humility we all have to have as human beings, that we’re sinful and we’re flawed and we make mistakes and we achieve salvation through the grace of God.”

Now don't get me wrong. I believe that everyone should be able to worship the God of their choice. I just don't get why, when a Republican talks about God, they are crazy people who believe in a fairy-tale. But when a Democrat says something about their faith? Well, you know...

Apparently, it doesn't matter because they don't actually believe it.