Saturday's debate did have some moments in it where candidates drilled down into their basic policy differences. This discussion of free college tuition was one of those moments.

Hillary Clinton, discussing her objections to blanket free college tuition for all.

Kevin, if I could just jump in. I -- I believe that we should make community college free. We should have debt-free college if you go to a public college or university. You should not have to borrow a dime to pay tuition. I want to use pell grants to help defray the living expenses that often make a difference, whether a young person can stay in school or not.

I disagree with free college for everybody. I don't think taxpayers should be paying to send Donald Trump's kids to college. I think it ought to be a compact -- families contribute, kids contribute. And together we make it possible for a new generation of young people to refinance their debt and not come out with debt in the future.

Honestly, I don't want to pay for Donald Trump's kids to go to school either, but I also doubt any of them would go to school at a public university anyway, so we won't have to worry about that.

As a parent of a kid in college, I'm frustrated that tuition eats into the grants my daughter earns to the point where living expenses are quite nearly impossible for her to cover, even with the small amount we can give toward it. California's original plan was that no tuition would be charged for our public universities and colleges, yet it's climbed at exponential rates over the past 15 years.

So let's not worry about Donald Trump's kids and just focus on the majority of kids and parents out there who are going way too far into debt to get educated. There must be a better way.