DNC 2024 Day 1 live updates: Biden lays out choice to 'save democracy' with Harris

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.

6:59

New York Rep. Alexandria Ocasio-Cortez speaks at the DNC

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

ABCNews.com

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."

9:47

UAW president takes the DNC stage

United Auto Workers President Shawn Fain praised Vice President Kamala Harris for her years of supporting the UAW and for fighting for workers rights.

ABCNews.com

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.'"

6:43

NBA coach Steve Kerr greeted with applause at DNC

Team USA coach Steve Kerr closes DNC speech: "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."

ABCNews.com

Convention staff is preparing for possible disruptions over Gaza during President Joe Biden's keynote speech.

ABC News has heard from staff and activists that they likely won't come from uncommitted delegates on the convention floor, but are expected to come from activists who have passes into the arena who are in sections higher up.

-ABC News' MaryAlice Parks and Isabella Murray