IIRC his explanation is that he didnt seek any clerkships because he knew he wasnt interested in a typical legal career.
I agree with the BS meter twitch.
(Maybe he didnt want to clerk because he knows he cant write.)
If that was his reason for not seeking a clerkship, he was massively uninformed or short sighted. A clerkship with a good judge can be the springboard into lots of interesting things, and a “traditional legal career” is only one of them. Look, for example, at the backgrounds of a lot of top staffers at the Department of Justice or any other federal agency. Or, maybe he could have grown up to be Ann Coulter?