Capital Gains taxes were asked about in the last Democratic Presidential Primary Debate.

Capital Gains are the profits someone makes from investments on Wall Street. Reporter Gibson asked both Obama and Hillary on raising these taxes.

Here is the exchange:

GIBSON: All right. You have, however, said you would favor an increase in the capital gains tax. As a matter of fact, you said on CNBC, and I quote, "I certainly would not go above what existed under Bill Clinton," which was 28 percent. It's now 15 percent. That's almost a doubling, if you went to 28 percent.

But actually, Bill Clinton, in 1997, signed legislation that dropped the capital gains tax to 20 percent.

OBAMA: Right.

GIBSON: And George Bush has taken it down to 15 percent.

OBAMA: Right.