Who is responsible for this?

I don't know where this came from, but for some reason when James sees a picture of Superman, he says something that sounds a lot like "it's George Bush." Here's an example:

We're not sure if he's talking about 41 or 43, or perhaps the 19th-century Biblical scholar by the same name. Nonetheless, in an effort to remain nonpartisan, we are trying to teach him to say "Dick Cheney" when he sees a picture of Lex Luthor.