TRUMP: "You don't learn a lot from tax returns."

THE FACTS: Donald Trump was explaining why he won't release his tax returns, although numerous other presidential candidates have done. And yes, one can learn quite a bit. Tax returns might not answer every question about Trump's finances, but they'd provide vital information about his wealth, taxes paid, tax avoidance efforts, exact amounts of real estate holdings and charitable donations that can't be gleaned from any other source. For these reasons, every major party candidate for the last 40 years has released at least a few years of recent tax returns.

CLINTON: As part of a list of economy-building moves, called for "making college debt free so more young people can get their education."

THE FACTS: Clinton has proposed making college tuition free for in-state students who go to a public college or university. But tuition free doesn't equate to debt free.

Under her plan, the government would pay for in-state tuition at public colleges and universities for students from families earning less than $125,000 a year. That would leave students still bearing the cost of room and board, which makes up more than half of the average $18,943 sticker price at a four-year public university, according to the College Board.

Experts worry about other effects: Will colleges raise tuition once the government starts paying, increasing the cost to taxpayers? Will more students flock to public colleges because of the subsidy, also raising costs?