african north americans who mate up half of the vote. something is fundamentally voted. when african-americans are arrested and sentenced to longer prison terms for doing the same things as a white does. eric garner, the man that die after being out in a choking ad. an ad was recorded. >> we need a president that will

>> when we stand -- supporters. >> when we stand together and demand the country work for all of us rather than the few, we will transfer america, and that is what the campaign is about. bringing people together. >> in south carolina, the messengers are impossible to miss. to help us break it down is a professor of political science, a political contributor at al jazeera america how important is it for bernie sanders to get the credit for the best of those ads, at a time when young voters want to see that in. >> it's really important. it explains why when you look apt new hampshire, he overwhelmingly won the young voiters. he did well with voters, and hillary clinton's campaign has to say i wish we have ads like that, and haven't translated those or won over and energized the young people. it's incredibly important.