By JOHN WASIK MONEYWATCH July 18, 2016, 5:00 AM
When Bernie Sanders recently agreed to endorse Hillary Clinton for president, a question popped into my mind: Would Clinton be directly linking college debt to income inequality?

She has embraced a Sanders-inspired plan to cover the cost of college tuition at four-year state schools for families making under $125,000 a year. Although the plan won't cover room and board and doesn't address the underlying high cost of college or poor graduation rates, it's a step in the right direction.

Yet the country need a national dialogue on how to guarantee a debt-free degree. No plan on the table -- whether it's from Clinton or Donald Trump -- completely addresses that objective. And no plan tackles the college savings gap facing the majority of American families.

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