You can read it all at the link above but the gist of it can be wrapped up by these quotes;
Graham refused to definitively say that President Obama is a Christian. When asked if he believed that he was, Graham said that people would “need to ask President Obama” to get an answer. ”
When co-host Willie Geist pressed him to say whether he believed Obama was a Christian, Graham maintained that he “cannot answer that question for anybody.” However, his answer on Rick Santorum’s Christianity was a resounding yes. “His values are so clear on moral issues,” he said. “No question, I believe he is a man of faith.”
Contributor John Heilemann took issue with this. “That is an amazing double standard you just applied,” he alleged.
“You have to look at what a person does with his life,” Graham defended.
He also would not say whether he believed Romney is a Christian. “Most Christians would not recognize Mormonism as part of the Christian faith,” he said.
He noted that Gingrich has been married several times, but that he believed that he was a Christian.
Geist questioned this. “So Newt Gingrich is a Christian, but you’re not sure that President Obama is. And you said based on the way they lived their lives.”
Someone off-screen could be heard saying, “Wow.”