The election is rapidly approaching and the next four years will be determined in just the next four days. The latest abc news poll shows mitt romney leading by one point. And while president obama... See More
The election is rapidly approaching and the next four years will be determined in just the next four days. The latest abc news poll shows mitt romney leading by one point. And while president obama enjoys overwhelming up port from african-americans, it's complicated. A new documentary series asking, will those same voter who propelled him to victory in 2008 turn out again? Here's abc's pierre thomas for yooice, your vote. What he represented to a nation of kids was hope. In this campaign ad released today, superstar rapper jay-z encourages black voters to get out the door and into the polling booth for barack obama. I'm barack obama and i approve this message. Reporter: With a 96% approval rating among black voters, though -- four more years! Four more years! Reporter: You may wonder why it's necessary. The reason? While support for the president among the democratic faithful remains high, this time, there's a decidedly different feel than that of election night 2008, a historic moment for the country as a whole, but a particularly meaningful one in the african-american community. I can't believe it! Reporter: The tears flowed freely. Raw emotion, hard for many to truly explain. Thoughts of the legacy of slavery, jim crow and overcoming. Converging in one epic instant. My dad, he cried, my household was very emotional. My family got together. I called my pops. It was a day he never thought he'd ever see. I never thought I would ever see it. Reporter: But it is now four years later and euphoria has given way to the harsh reality of economic pain. And there are scars created by a divided country. Still, at times wrestling with issues of race. A new black entertainment television documentary series, "second coming," peels back the layers of the devoted by complicated relationship black voters have with the president. Crime is rising. He's doing a good job or bad job? He hasn't had a whole lot of time. He's got four years. I think there's no doubt the thrill is gone. That moment in 2008 was a once in a lifetime experience. Reporter: Mark levin sent teams around the country to talk to blacks from every walk of life. Did I think he was going to save black america? No. Reporter: There are frustrations. As blacks have been hit harder been the great recession than any other group. Black unemployment is almost double the national average. To me, he hasn't done anything. Economy hasn't gotten better. We're in the same spot we were when bush was the president. Reporter: And another emotional thing has surfaced. Gay marriage. I think same sex couples should be able to get married. I don't even care what obama says. Jesus said marriage is between a man and a woman. Reporter: This reverend, the pastor of a large african-american congregation in baltimore, is among those profiled in the documentary. A fiery charismatic speaker, he's among a new generation of black religious leaders diving into the political fray. This election has far reaching implications. Reporter: You part ways with the president on the issue of gay marriage. Yes. I'm against the president on that issue. Reporter: But he still supports obama. I think where it is that the african-american community and the black pastors have got to mature is one issue ought not be able to sever the relationship. Reporter: Are you concerned that some of the black pastors are going to tell their congregations to stay at home or vote the other way? That's a very small minority. African-american community has more than one opinion. I think parishioners are still going to go vote and in large numbers they're going to vote for the president. Reporter: Abc news polling suggests there has been no significant dropoff in black enthusiasm for obama than in 2008. Voting for obama? Yeah! Reporter: But aside from the usual support democrats reveal on, the series reveal one additional motivation. This pat has a deep hatred for white people. This man hates this country. Reporter: A simmering anger many blacks feel about how they believe the president has been treated. We seen that governor put her finger in his face. When you have seen somebody do the president like that? I think it is a deep-seeded racism that we have not yet confronted. Reporter: There will be people that hear that and say, you know, there they go again. Yes. Reporter: When you hear that mantra, let's take america back, what do you thiney're talking about? I really think they're saying, let's take the paradigm back to the way it used to be. A good old boy's system at the country club are drinking around palmers. Reporter: If the filmmakers have tapped into blackanger, they share it. Angry? Yeah, I'm angry about that. There's never been a president who has been treated as shabbily as this president. Reporter: And they hope that anger will translate into heavy black turnout for the president. We got to shake every tree, break into every barbershop. Yell from every church. NOVEMBER 6th, LET'S SHUT IT Down. Got to be about the election. Reporter: For "nightline," I'm pierre thomas, abc news, washington.
This transcript has been automatically generated and may not be 100% accurate.