Rubio supporters have, for the most part, flatly refused even to debate the policy issues at stake here. They will not even discuss changing our trade policy. They make some noises about immigration enforcement, but this is not done in a spirit of compromise, but with the arrogance of those who know that no one really expects them to change their views if they win. For all the complaints about Trump’s policy generalities, Establishment GOP types have not even pretended to engage in a serious debate. Their offer is simple: You do as we say, or we will throw the election to Hillary.