It doesn’t matter what he personally decides.
He (and everyone else) is already blocked from running GOP primary and Independent General election.
But don’t let the facts stop the press from using a non-issue to bash a conservative or two.
He has not yet run in a primary. Are you the only person in the US who knows what the laws are? Why is the question even being asked if he would run third party if he is absolutely prohibited from running?
He's been asked about third party numerous times since he announced.