Obama was sworn in again.
UPDATE: Well, you would think that would be the end of it. I mean, it wasn't necessary in the first place (George Washington wasn't sworn in until seven weeks until his administration). But no. NOW the gripe is going to be that Obama, when he re-took the oath, did not have his left hand on the Bible. This, of course, makes no difference (legally or otherwise). You can swear on a Dr. Seuss book, a stack of Playboys, or nothing at all.