Chris Christie’s problem is that he’s really, truly a bully: It's entirely possible that Christie didn't know very much about the bridge episode. It might just be the product of the culture he's created, or permitted, to arise around him. What's dangerous for Christie, though, is that now every political reporter in the country will begin believing rumors of his punishments and hunting down evidence of his retaliation. And things Christie was able to do before to wide applause — like berate a schoolteacher and then have his staff upload it to YouTube — will begin feeding a very different kind of narrative.
Chris Christie rose because he's a bully. It might be why he falls, too.