CHICAGO - Former President Trump has repeatedly argued that Kamala Harris is an ultra-liberal and has insulted the vice president as "comrade Kamala" in the month since she replaced President Biden atop the Democrats' 2024 ticket.

But top Harris surrogates argue that the attacks from the former president won't fly with American voters.

"That boat doesn’t float. It just doesn’t float," Sen. Cory Booker, D-N.J., told Fox News Digital on Thursday, hours ahead of the vice president's nomination acceptance speech on the final evening of the Democratic National Convention, which is being held in Chicago.

Booker, a leading ally of Harris in the Senate, pointed to legislation he has co-authored with the vice president that they have successfully ushered through Congress and into law.

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"I know the things we’ve worked on together. And it’s not sexy stuff. It’s how you clean up the environment, so less people are dying of cancer. It’s how you help farmers out. . . . There’s so many pragmatic things that she’s worked on, and a lot of it is bipartisan," Booker said.

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Booker also charged that Trump "is the barrier to pragmatic problem-solving. Kamala Harris is the antedote."

First-term Maryland Gov. Wes Moore, a rising star in the Democratic Party, was also asked about Trump's efforts to paint Harris as a far-left politician.

"I have learned not to spend much time listening to Donald Trump’s foolishness," Moore said.

Moore predicted that "what we’re going to hear from the vice president tonight, is actually a real vision of how we’re impacting everyday working families."

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And he argued that "what we’re hearing from Donald Trump is insults. So I think people are going to make the decision that that’s not the America they want to live in. That the America we hope for is bigger and better and greater than that. And so that’s why I’m confident that Kamala Harris is going to win in November."

Two-term Illinois Gov. J.B. Pritzker, who was considered to be on the longer list of potential Harris running mates, told Fox News that he'll be out on the campaign trail on behalf of Harris during the stretch run to the November election.

"I’m going to be going to some swing states and speaking to Democrats and also to Independents, in Arizona for example. That’s just one of the many places that I’ll be," Pritzker told Fox News Digital on Thursday.

And Pritzker will also be campaigning on behalf of Harris and down-ballot Democrats on Labor Day in swing state New Hampshire, which Fox News was first to report last week.

The governor emphasized that "we’ve got to make sure that people understand that this election is the most important election of our lifetimes. And I mean that literally."

Get the latest updates from the 2024 campaign trail, exclusive interviews and more at our Fox News Digital election hub.

Lainey Wilson is spilling details about her once secret relationship and why, after dating for several years, she and her boyfriend are still not engaged.

Appearing on the "Taste of Country Nights, On Demand" radio show, Wilson, 32, spoke about how she'd been enjoying being able to share more of her personal life with her fans.

"It's really cool to be able to start sharing that side of my life," she said of her relationship with former NFL quarterback Devlin "Duck" Hodges, 28. "Cause for a long time, I kept him on the [down low]. I wanted to see if he was actually gonna be around to stay. You know what I'm saying?"

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"But he ain't going nowhere. I ain't got rid of him yet," she joked.

Wilson, who is currently on tour, only took her relationship public last May, bringing Hodges as her date to the ACM Awards. The country star revealed soon after on the "Bobby Bones Show" that she and Hodges had been dating in secret for 2.5 years.

"I play all my songs for him before I play ‘em for anybody," she continued on the radio show. "So he’s heard a little bit of everything. And he's heard a lot of love songs that I've written him that nobody else will hear."

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The "Yellowstone" actress also touched upon her future plans with Hodges, clarifying that she wasn't hiding anything.

"We're not secretly engaged. No! But I guess I'm gonna have to propose to his a-- cause he ain't proposed to me," she joked. "I think [an engagement] needs to be during a season of our life where we really have the time to like, enjoy it," the "Heart Like a Truck" singer continued.

"Right now… It'd be like ‘Oh shoot, I'm engaged. Alright, onto the next thing.' And I just wanna be able to really soak it in."

Since making their red carpet debut at the ACM Awards, Wilson and Hodges have attended several award shows together.

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At the CMT Music Awards this past April, Wilson told Fox News Digital that her boyfriend was "a looker," and shared how elated she was to have him beside her. "He's one of my biggest cheerleaders. I always say that he's the kind of dude that will high-five you on the way in the door and high-five you on the way out."

"Especially with the kind of job that I have, it's important to have those kind[s] of people in your life. So I'm very thankful that he's here with me."