Colorado Gov. Jared Polis brought back the Project 2025 prop book and continued the theme of slamming its conservative policy proposals.

Polis, a self-proclaimed "Swiftie," cited one of the pop star's famous lyrics in denouncing the ideology.

"These Project 2025 people like Trump and Vance are not just weird, they're dangerous. They want to take us backwards. But we aren't going back. Like ever, ever, ever," he said to applause.

Sen. Cory Booker continued to criticize Project 2025 with a bit on how Democrats believe it will take the country backward.

"No matter where you live, so-called blue states or red states, if Donald Trump has his way, he's going to push through their extreme agenda Project 1825," Booker said.

"I mean, I'm sorry. I'm sorry, I'm sorry. I roll that back. I got that wrong. Project 1925. Oh, I'm sorry, I'm sorry. Project 2025. That poisonous agenda where every single state will be in a state of crisis."

A few speakers who lead organizations focused on reproductive rights highlighted Vice President Kamala Harris' support of reproductive rights and abortion access, saying that a Donald Trump and JD Vance administration would roll back access to abortion.

Alexis McGill Johnson, the president and CEO of Planned Parenthood, spoke about South Carolina and Florida's six-week ban on abortion and how it impacted a Planned Parenthood patient in Georgia, who tried to go to those states because Georgia also bans abortion after six weeks.

"I'm here to tell you, in no way are Donald J. Trump and JD Vance more qualified than doctors and women to make these decisions. We decide. We trust women. We trust doctors. And we trust Kamala Harris," she said.

-ABC News' Oren Oppenheim

Delaware Rep. Lisa Blunt Rochester, the co-chair of the Harris-Walz campaign, is now on stage.

She told ABC News earlier this week that the campaign wanted to focus on how Harris and Walz will uplift the middle class during the convention.