The third Republican presidential debate airs tonight at 8pm eastern on CNBC and is titled Your Money, Your Vote, which is coincidentally also the title of this year’s session of the Supreme Court. Except for the absence of Scott Walker, the field looks remarkably similar to what we saw in the second and first debates. CNBC admitted all the candidates polling above 3% nationally, which should give you some sense of the sheer, um, thoroughness of the Republican field. Some of these people are not strictly necessary. But the least necessary of them all, Donald Trump and Ben Carson, are somehow vying for front-runner status nationwide. I don’t know about you, but I expected those bubbles to pop sooner. Which brings us to a question: What could voters learn about those two men tonight that they don’t know already?