Pennsylvania Gov. Josh Shapiro continued with the Democrats' message of freedom contending that they were the party of "real freedom" -- to the cheers of the crowd.

"Kamala’s and Tim’s names may be on the ballot, but it's your rights, it's our rights and our future and our freedoms on the line," he said.

Shapiro drew the line from the Revolutionary War to the Civil Rights movement as examples of how the country has come together to keep those freedoms, prompting chants of "USA" from the crowd.

"E pluribus unum -- out of many, one -- is not merely a motto from the past, but a direction for our future," he said.

Shapiro was on the short list for Harris' vice presidential picks before she selected Walz.

Tony West, Harris' brother-in-law, also serves as a close adviser to her 2024 campaign.

He's been seen little on the trail but is now on stage talking about meeting Harris and their shared passion for criminal justice.

Alexander Hudlin, Jasper Emhoff and Arden Emhoff, Harris' nephews and niece, touted their aunt as someone who listened to their concerns and pushed them to never give up hope.

The three reciprocated that support.

"Most importantly, you're a baller," Alexander said.

"Let's win this thing," the three said together.

There's some torch-passing in tonight's speaker lineup: from Clinton and Pelosi to Shapiro, Wes Moore, Pete Buttigieg and ending the night with Gov. Walz.

-ABC News' Rick Klein