I disagree, in fact it may be his best moment yet!
Go Trump!
Has Trump specifically mentioned the Judges potential bias, based on the La Raza association (or some other legit reason)? If so, then maybe its a good moment. However, if he only said the judge was potentially biased because he is hispanic, then I would say that was not his finest.
I agree too. Trump 2016! Deport anti-American invaders.