When Donald Trump says something controversial, he doubles down. It's what he does. So it's not surprising that he's continuing to attack Judge Gonzalo Curiel, the federal judge presiding over two class-action lawsuits against Trump University, by saying his "Mexican" heritage makes him biased against Trump. But even so, Trump's rant about Curiel on Jake Tapper's CNN show Friday was weirdly obsessive. Donald Trump just cannot believe that someone who's proud of his Mexican heritage is allowed to judge Donald Trump. Read more http://www.vox.com/2016/6/3/11854868/trump-curiel-mexican