I think Trump is just screwing with the media now...and/or possibly suggesting a few wild ideas in private just to identify any potential leakers in his inner circle.
It’s a disinfo/psyops trick and would be a countermeasure readiy suggested by an old intel hand like Flynn, and probably a negotiation tactic previously used by Trump.
I hope so. Some of these leaked possible picks are horrible. Hey why not psy ops graham and claim he is up for something to see how he would react lolol