ABC This Week interviews during 2015: on Corporations

Ben Carson: Smart bank regulation necessary to protect people

CARSON: Well, certain types of regulations. Glass-Steagall was a reasonable regulation after what happened on Wall Street in 1929, because the banks were playing with people's cash. And then in the '90s, we took the teeth out of that and we started thinking maybe men were angels. But what we have done instead is we've just ballooned the number of regulations. And every single regulation costs in terms of goods and services. And who is hit most? Poor people and the middle class.

Q: So would you re-impose Glass-Steagall?

CARSON: With some modifications. We certainly need to make sure that we don't have out-of-control credit default swaps and all kinds of funny money going on. We need to make sure that we protect the people. And that's what the regulations are for.

Lawrence Lessig: We need a new law to take on Wall Street

LESSIG: On Dodd-Frank, look, every Democrat is talking now about how we have to go back and have a new law to take on Wall Street. But you can't take on Wall Street until you change the way campaigns are funded, because the biggest funder of campaigns in Congress is Wall Street.

Carly Fiorina: US should uplift small businesses, not crony capitalism