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

In a video message, former Trump supporter Rich Logis of Florida urged Republicans and Independents against voting for the former president.

"Lying is Trump's toxic superpower. He's ripped apart families, communities, our whole country," Logis said.

"So this is my message to all the Republicans and Independents who are watching -- people like me who voted for and believed in Trump: I made a grave mistake, but it's never too late to change your mind. You don't need to agree with everything you hear tonight to do what is right. We need to be able to trust our leaders. That's why I'm all in for Kamala Harris."

Rep. Lauren Underwood wrapped up her remarks about COVID and health care by praising the work of the Biden-Harris administration.

"Four years ago, it was not safe to hold a convention like this. But tonight, thousands have gathered in this arena in my home state of Illinois to make sure Kamala Harris is the next president of the United States," Underwood said. "We have come so far these past four years and we're not going back."

The crowd immediately erupted in cheers of, "We're not going back!"

The phrase has been a hallmark of Harris' campaign so far, often arising when she is criticizing aspects of Trump's record.

Peggy Flanagan, Minnesota's lieutenant governor, returned to the stage to tout Gov. Tim Walz after he was confirmed as the Democratic vice presidential nominee.

Flanagan, who would become the first Indigenous governor if Harris wins the election, talked about her upbringing as a citizen of the White Earth Band of Ojibwe, and how it shaped her values.

"The role of our clan is to ensure that we never leave anyone behind. That's why I am supporting Kamala Harris and Tim Walz to be the next president and vice president of the United States," she said.

Flanagan got emotional when she talked about her late brother, who was one of the first Minnesota residents to die from COVID-19 in 2020.

She said former President Donald Trump "was playing games" during his COVID-19 response.

"Our country was brought to the brink by his failure to respond. But the Biden-Harris administration stepped in with quick and decisive action," Flanagan said.

Gov. Tim Walz was ceremonially confirmed as the Democratic vice presidential nominee during a voice vote.

"USA" chants broke out again in the stadium after the vote.

Walz will deliver his acceptance speech on Wednesday at the DNC.