Tonight's speakers include several prosecutors with ties to Harris or even Trump -- including Tristan Snell, who spoke on stage about taking on Trump University fraud.

"Kamala Harris fought scammers like him. And as president, she will continue to fight for you, for us, for the people," Snell said.

Democrats see the contrast between Harris the prosecutor and Trump the felon as a winning message.

"It's a beautiful split screen," Maria Cardona, a Democratic strategist and former senior adviser to Hillary Clinton and former communications director for the Democratic National Committee, previously told ABC News.

"She went after bad people who hurt the people that she was representing and that's exactly what she's doing now," Cardona said.

New York City Council member Yusef Salaam, one of the five men exonerated in the "Central Park Five" case, called Trump a "hateful man" during his DNC appearance.

"He wanted us dead," Salaam said. "Today, we are exonerated because the actual perpetrator confessed. And DNA proved it."

Salaam said Trump "thinks that hate is the animating force in America. It is not."

Korey Wise, another one of the men who was exonerated in the case, said they were "threatened" by people after Trump ran ads calling for the death penalty for violent crimes in New York in the wake of the attack.

He said Harris, by comparison, has "worked to make things fairer."

"I know she will do the same as president and I approve that message," Wise said.

In her acceptance speech tonight, Harris will deliver a message of unity as Democrats look to appeal to independent voters.

"With this election, our nation has a precious, fleeting opportunity to move past the bitterness, cynicism and divisive battles of the past," she will say. "A chance to chart a New Way Forward. Not as members of any one party or faction, but as Americans."

"I know there are people of various political views watching tonight. And I want you to know: I promise to be a president for all Americans," Harris will say, according to released excerpts of her speech.

"I will be a president who unites us around our highest aspirations. A president who leads -- and listens. Who is realistic. Practical. And has common sense. And always fights for the American people. From the courthouse to the White House, that has been my life's work."

Four of the five men in the "Central Park Five" who were wrongfully convicted in the 1989 rape of a Central Park jogger appeared at the DNC.

The five Black and Latino men, who were teenagers at the time of their arrest, were taken into custody, hounded in police interrogations and ultimately gave false confessions in the brutal assault on jogger Trisha Meili.

While the five teenagers awaited their trial, former President Donald Trump bought newspaper ads calling for New York to adopt the death penalty for violent crimes.

"Bring back the death penalty. Bring back our police!" the ad stated in all caps.

The five men were exonerated in 2002 after convicted rapist Matias Reyes confessed to being Meili's sole attacker, and Reyes' DNA was matched to the crime scene. New York City settled with the Central Park Five in 2014 for $41 million in a civil rights lawsuit.

When asked in 2019, following the release of a Netflix series about the case, whether he would apologize for the ads to the men who were exonerated in the Central Park jogger case, Trump refused.

"Why do you bring that question up now? It's an interesting time to bring it up. You have people on both sides of that," he said. "They admitted their guilt. If you look at Linda Fairstein and you look at some of the prosecutors, they think that the city should never have settled that case, so we'll leave it at that."

Following Trump's indictment in 2023 on 34 felony counts of falsified business records in the hush money case, some of the exonerated men called it "karma."