Yes, and he was lobbying to be AG.
He still would have been a better choice than Sessions.
Of course, hindsight is 2020.
As Governor, he had an executive team to manage the day to day affairs of New Jersey. As a prosecutor, he had a team of associate lawyers, paralegals, and administrators to do the daily work. Managing something smaller, but much more immediate, like a Presidential transition team that has only 12 weeks to get the job done, exposed Christie's true abilities.
He failed at the job and it cost him all of his desired future opportunities.
-PJ