Well, he's a Mormon. Therefore, he is outside the "one holy and apostolic church" that creedal Christians affirm. I believe that sola scriptura" believers classify Mormonism as non-Christian.
So the question for a Christian should be "What are we do with the political positions of a man whose religion is false"? I have not thought this through, but I thank you for inspiring me to do so.
I think that there can be a fine line between patriotism and idolatry for a Christian. The fact that we (including me) display an American flag and no Christian symbols on my house strikes me as maybe problematic in this area.
But, to repeat, I have not thought it all the way through.
Actually Glenn Beck is a Catholic — read (short read) “The Christmas Sweater” and how he talks about playing games with his grandfather on who could kneel down, stand up or sit down the fastest! Cute little story to read at Christmas time.