Chris Matthews: Seriously, seriously about this. Bernie says he's going to pay for the free tuitions at all the great state universities with something called a tax on Wall Street speculation. That sounds great. We'll screw the bad guys.

But then I ask the people, 'What do you mean by a tax on Wall Street speculation?' They said, 'Well, every time you buy or trade $100 worth of stock, you pay 50 cents or whatever,' right? So all of a sudden, your 401(k), your mutual fund, everything your grandparents have invested in is now getting taxed as you go in the door. ... That doesn't sound like Wall Street speculation. It just sounds like taxing anybody that's going into the equity markets. That sounds like a lot of taxing.

Alex Seitz-Wald: She [Hillary Clinton] is right on all these things if you dig down, but it's the vegetables. She's trying to sell broccoli and Bernie Sanders is selling ice cream. You're gonna feel terrible the next day if you eat a lot of ice cream, but for the moment, it sounds pretty good.

Luciana Lopez: Saying to people 'Wall Street speculation' -- everyone has different image of what that is. …

Matthews: Well, speculation is bad.

Lopez: Well, no one is like, 'My 401(k) is speculation.' In a way, it gets to be all things to all people, to use these words that people then get to kind of define.

Matthews: Here's the irony of our time: Everybody hates people who make money off money -- captains of the universe, billionaires making money off of other people's money. Yet everybody who retires and begins to want to save, everyone wants better than the interest rate. And they want somebody who can do that for them.