Democratic presidential candidate Sen. Bernie Sanders (I-VT) said Sunday that he was “decimated” among some demographics in the South Carolina primary.

CBS News’ “Face the Nation” host John Dickerson asked Sanders if his “fatal flaw” was not connecting his economic justice message with black voters.

“Well, no question, I mean, let me be really clear, we did really, really badly with older African American voters. I mean, we got decimated,” Sanders said. “On the other hand, if you look at the younger people, African-American younger people and whites, we did much better.”

He added that he was “confident” in future primaries.

Former Secretary of State Hillary Clinton was declared the winner shortly after polls closed on Saturday. Results showed that Clinton took 73.5 percent of the vote and Sanders took 26 percent.