Trump says he 'shouldn't have left' the White House

Harris’ running mate Minnesota Gov. Tim Walz kicked off a campaign swing through Georgia on Sunday with events in Fulton and Gwinnett counties in the Atlanta area.

At a discussion with HBCU students from the Atlanta University Center Consortium -- Clark Atlanta University, Spelman College, Morehouse College and the Morehouse School of Medicine -- Walz asked the students how they were feeling about the election. The one male student of the group of six told the governor he was “scared.”

“Scary, right?” Walz responded, offering some advice to deal with the pre-election nerves: “Nauseously optimistic. It is OK. Before any big thing in life, you always feel anxiety. You always feel nervous. But the biggest thing I've been telling everybody to get over that is going to action,” he said.

Walz then kicked off a canvass launch with Rep. Lucy McBath, D-Ga., in Gwinnett County, sounding hoarse at the beginning of his remarks after days of nonstop campaign travel.

“I'm leaving it all on the field so I have lost my voice, but it has come back for these last 48 hours,” Walz said.

He told the crowd a little of what he’s been doing the past couple days on the road in the West.

“The turf is cut. We're ready to go,” he said. “I was knocking doors in Henderson, Nevada, yesterday, they're doing great. We were in Flagstaff to massive crowds. We ended up in Tucson. People are showing up across the country because they believe in a new way forward.”

Walz also emphasized that the race in 2020 was won through Georgia.

“This will be won through states like Georgia. They're going to be won through canvases just like this, on margins where one or two votes per precinct are going to make a difference. Georgia, you stood up last time and stood for America,” he said.

Walz is to speak later Sunday at a rally in Cobb County with second gentleman Doug Emhoff, Harris’ sister Maya, and musicians Jon Bon Jovi, The War and Treaty, and Michael Stipe.

Then he’ll head to Charlotte later Sunday for campaign events there.

-ABC News’ Isabella Murray

Harris posted a video on social media on Sunday asking Americans to vote and noting that she has already done so while holding up her mail-in ballot.

“Hey, everyone. Election Day is Tuesday, November 5th. And yes, this race is going to be tight but we are going to win," Harris says in the post. "And one of the reasons why is you’re going to vote. I know you are. So, make sure you fill out your ballot. I did mine. I’m going to put in the mail."

Harris added, "And we are going to make sure that we fight together for the promise of America. And if you haven’t yet, please make a plan to vote."

-ABC News' Fritz Farrow, Gabriella Abdul-Hakim and Will McDuffie

Harris is enlisting some big names for her Pennsylvania rallies on Monday night -- on the eve of Election Day -- with Oprah Winfrey, Lady Gaga, Katy Perry and Ricky Martin among those performing or delivering remarks, her campaign announced Sunday.

At Harris's penultimate rally of the campaign in Pittsburgh, D-Nice, Katy Perry and Andra Day are set to perform. While in Philadelphia, the last campaign event Harris plans to hold, Winfrey, Lady Gaga, Ricky Martin, Jazmine Sullivan and Adam Blackstone, The Roots, DJ Cassidy, Fat Joe, and Freeway and Just Blaze will make appearances, the Harris campaign said.

"These artists and public figures are trusted voices for millions of Americans, who listen to their music, follow them on social media, or otherwise are inspired by them," the campaign said. "The Harris-Walz campaign believes that by using their voices to lay out the stakes of this election, it will further encourage and mobilize people to go vote."

Harris and second gentleman Doug Emhoff will attend both rallies.

The campaign said it is giving VIP seating to those who volunteer to phone bank or knock on doors in the last weekend before the election as an incentive.

These performances will be meshed together in a national simultaneous livestream. Rallies will be held in other battleground states. In Phoenix, for example, La Original Banda El Limón will perform, and in Detroit, the Detroit Youth Choir, Jon Bon Jovi and The War and Treaty will perform, according to the campaign.

-ABC News' Fritz Farrow, Gabriella Abdul-Hakim and Will McDuffie

Speaking to CNN in his first interview on the campaign trail, former President Bill Clinton compared Trump’s impact on today’s political climate with fascism in the 1930s, and called the possibility of him getting reelected a "travesty."

"I don’t know if we can survive or not. I think it would be a travesty if he became president again," Clinton said.

Clinton expressed concern with the outcome of the election -- whether Trump wins or loses.

"What has surprised so many people -- although I’m sure this happened in the '30s throughout Europe, when they were considering things with fascism -- a lot of people just can’t believe how many voters in America agree that [Trump] doesn't make sense, agree that he's advocating things that would be bad, but somehow think that if the experience was good for them back then, it was magically his doing and everything was fine. So, I don’t know what's going to happen," Clinton said.

-ABC News' Emily Chang and Oren Oppenheim