It is crucial to understand the real issue in this matter. I am not judging whether Curiel is actually biased against Trump. Only he knows the answer to that question. I am not saying that I would be concerned about him presiding over a case in which I was a litigant. And if I were a litigant who was concerned about the judge's impartiality, I certainly would not deal with it in a public manner as Trump has, because it demeans the integrity of the judicial office and thus potentially undermines the independence of the judiciary, especially coming from a man who could be president by this time next year. But none of these issues is the test. The test is whether there is an "appearance of impropriety" under the facts as they reasonably appear to a litigant in Trump's position.