Actor Tony Goldwyn kickstarted a segment about Harris' story, which he said began in a middle-class, tight-knit neighborhood in the East Bay of California.

"These are the experiences that made her the leader she is today," Goldwyn said.

A video then aired featuring testimonials of a young Harris from her sister Maya Harris, her friend Stacey Johnson-Batiste and her mother's friend Lenore Pomerance.

Johnson-Batiste recalled a young Kamala Harris defending her on the playground.

"This one particular day, we had made some clay art and this one boy in our class had taken mine for whatever reason and threw it on the ground and it shattered. So Kamala, being very protective, just jumped in front of me and stood up to him. To me, that shows the kind of person that she has always been, to stand up to the bully and to stand up for the underdog and to stand up for what is right," Johnson-Batiste said.

New York Rep. Alexandria Ocasio-Cortez riled up the crowd when she went after Trump while urging voters to make history in electing Harris as president.

"Chicago, we have to help her win, because we know that Donald Trump would sell this country for a dollar if it meant lining his own pockets and greasing the palms of his Wall Street friends," she said.

"And I, for one, am tired of hearing about how a two-bit union buster thinks of himself as more of a patriot than the woman who fights every single day to lift working people out from under the boots of greed trampling on our way of life," she said to rapturous applause.

"The truth is, Don, you cannot love this country if you only fight for the wealthy and big business. To love this country is to fight for its people," she continued.

Ocasio-Cortez briefly mentioned the Israel-Hamas war, saying Harris is "working tirelessly" to secure a cease-fire in Gaza and bring hostages home.

United Auto Workers President Shawn Fain took the stage and began by thanking President Joe Biden for joining the picket lines during their strikes against the major auto companies last year.

Fain praised Vice President Kamala Harris for her years of supporting the UAW and for fighting for workers' rights.

"It's real simple. Kamala Harris is one of us. She's a fighter for the working class. And Donald Trump is a scab," Fain said to the crowd who chanted "Trump is a scab."

Fain revealed a shirt with that statement along with "Vote Harris" midway through his speech citing Nelly's 2002 song "Hot in Here."

"It's hot in here because you're fired up and you're fed up and the American working class is fired up and fed up," he said.

Fain also called out Trump's rhetoric blaming economic problems on several groups including immigrants and LGTBQ groups.

"Trump is pushing divide and conquer tactics of the rich. It's the oldest trick in the book," he said.

"They do that because they want working-class people to be divided into focus and keep the focus off the one true enemy: corporate greed. The rich think we're stupid, but working class Americans see this for what it is," Fain added.

Golden State Warriors coach Steve Kerr got a standing ovation when he walked on stage, just over a week after he coached the U.S. Olympic men's basketball team won gold.

Chants of "USA" stretched across the convention floor as he started speaking.

"It was the proudest moment of my life," he said, recounting the team's victory in Paris earlier this month.

Kerr called the audience to action -- asking the country to follow in the footsteps of the American basketball team's gold medal performance in Paris.

"After the results are tallied [on election] night, we can, in the words of the great Steph Curry, we can tell Donald Trump, 'night-night.'"