After the Pope visited Obama

I remember a while back when the Pope last visited Obama. Not too long after that visit, there was a video that showed that Obama had declared himself anti-Christ. Then after that, the Pope declared himself also as being anti-Christ on a video.

What I would like to know is this: What does the Pope know that we don’t know FOR HIM TO MAKE SUCH a statement? He had previously stated that to have a relation with Jesus could be dangerous. If you notice, they did not declare themselves anti-God but anti-Christ because whenever Jesus is mention He is referred to as Lord Jesus Christ.

Let me be clear about how I am understanding those videos (sorry that I cannot relocate the links or I would share them here). Those two are not declaring themselves to be the anti-Christ, rather it seems that they are anti-Christ as in against Jesus.

Let me know your thoughts in the comments or if you can find the videos that I am mentioning, if you could post the links in the comments it would be helpful. Thanks.