Fox News star Bill O’Reilly was so certain that the Supreme Court would not back up the Affordable Healthcare Act that he said he would apologize and call himself an idiot if he turned out to be wrong, reports TVNewser.com.

On Monday’s show, O’Reilly discussed the decision with Bernard Goldberg and mentioned that he had not figured on Chief Justice John Roberts’ tax argument, and thus had to back up his words.

Here’s the clip, which evolves into a pretty good discussion of media bias: