Dr. Ben Carson defended talking about President Bill Clinton’s past, saying “President Clinton is a previous president. All previous presidents and their administrations are fair game for analysis and comparison.”

“So just because one of the candidates who’s running happens to be married to one of them,” Carson explained, “doesn’t take that individual off the table.”

Carson expanded on comments he made on Monday’s “O’Reilly Factor” where he said, “As a pediatric neurosurgeon, I deal with a lot of children and I see them becoming coarser and wanting to know what certain things they see on television, things they would never have known about as kids before. I’m sorry to see that happen. I’m sorry that it was because of one of our presidents.”

Carson insisted, “I should be sorry. You should be sorry. We should all be sorry. You know, the fact of the matter is there is such a thing as right and wrong.”

“There are morals and values and principles,” Carson argued. “We have to stop letting people sweep all this stuff under the rug and saying, ‘Eh, it’s no problem. Everything is of equal value.’ That’s not true. That’s not what made America into the greatest nation the world has ever known. We should not be willing to throw away all of our values and principles for the sake of political correctness. Absolutely not. We’ll never submit to that.”