Former Vice President Joe Biden wrapped up his campaign swing through the Midwest with a socially distant speech in front of just a few dozen people in an airport hanger in Milwaukee, a few hours after President Donald Trump stopped in the battleground state.

Biden remarked on the rising number of COVID-19 cases nationally and in Wisconsin specifically, which is facing one of the fastest-growing outbreaks of COVID-19 in the country, and repeated many familiar criticisms of Trump's handling of the pandemic throughout his remarks.

"I know it's hard. More than 225,000 people, I think it's 229[,000] as I speak, have already lost their lives to COVID-19. Two thousand here in Wisconsin. Six hundred here in Milwaukee County. This week, Wisconsin, like other states, set a new record for daily cases. Hospitals are running short on beds. Just had to open a field hospital. That's what we're facing," he said.

"Donald Trump waved the white flag, surrendered to the virus," he continued. "But the American people don't give up. We don't give in. Unlike Donald Trump, we're not gonna surrender to this virus. We are simply not going to surrender."

Biden also went after Trump on trade, calling his policy "a disaster" that "decimated" the Wisconsin dairy industry.

The candidate said his campaign is taking a different approach to Wisconsin than Hillary Clinton did in 2016.

"For a whole lot of reasons, not all of which were her fault, we ended up not taking it too seriously. We thought it was different," Biden said, adding, "I've been here a lot."

This marks Biden's third trip to Wisconsin since the Democratic National Convention, making it his fourth-most-visited state, behind Pennsylvania, Michigan and Florida.

Unlike Biden's drive-in rallies on Friday, his remarks in Wisconsin were given in an open-air airport hangar. The event was held at least partially outdoors on a near-freezing Wisconsin evening.

"I'll tell you what, they told me it's gonna be indoors. You're a hardy bunch in Milwaukee," Biden said.

-ABC News' John Verhovek, Beatrice Peterson and Molly Nagle

Prone to speaking for over an hour at rallies, a clearly annoyed President Trump delivered a monotone speech for just 21 minutes to 250 supporters gathered outside in 40-degree weather at his final rally of the night in Minnesota.

Without the large, raucous crowd that the president typically feeds off of, Trump sped through his prepared remarks and stuck to the prompter as the sun set behind him.

Per state guidelines, the outdoor rally was limited to 250 people max, so long as social distancing could be maintained. As soon as he stepped on stage, Trump attacked Minnesota Gov. Tim Walz and Minnesota Attorney General Keith Ellison for the limited crowd.

"As you know, there are at least 25,000 people who wanted to be here tonight," Trump said. "Your far-left Democrat Attorney General Keith Ellison and your Democrat governor tried to shut down our rally, silence the people of Minnesota and take away your freedom and your rights."

Trump, who spoke to an overflow crowd prior to the Minnesota rally, addressed those supporters. "I want to thank the thousands of people outside who were barred from entry by radical Democrats," he said.

The president then continued to attack Ellison, as well as former Vice President Joe Biden, claiming that "they want to imprison you in your homes while letting anarchists, agitators and vandals roam free as they destroy your cities and states."

But on Nov. 3, he continued, "The people of our nation are going to be heard like never before. It's already begun. People are already starting to find out what's happening. Because they're going to show up and vote in record numbers, and you have already started to see what's going on and they are getting very concerned."

Before unexpectedly ending, Trump, who lost Minnesota in the 2016 election, thought about what he could have done differently to win the state then.

"One more stop. I should have come one more time, just one more time," he said. "But you know what? It's not going to matter because we're going to have an even bigger victory on Nov. 3."

-ABC News' Terrence Smith and Will Steakin

Vice President Mike Pence wrapped up his day in Arizona with a rally in Tucson, where he told a crowd of roughly 500 gathered on the tarmac of Tucson International Airport that in "four more days, it's going to be four more years" of a Trump presidency.

In addition to his standard stump speech, Pence mentioned recent reporting from Politico that Sens. Elizabeth Warren and Bernie Sanders are interested in joining Joe Biden's cabinet, using it to further his argument that Biden would only be a "Trojan horse" for progressive Democrats.

"Joe Biden would be nothing more than a Trojan horse for the radical left," he said. "I mean, they're already talking about cabinet appointments. Maybe you read about that. I'm hearing that Bernie Sanders and Elizabeth Warren are looking to be on the cabinet, and drive America's policies to the left."

Pence also criticized Sen. Kamala Harris for her vote against President Donald Trump's USMCA trade deal, accusing his opponent of putting her "radical environmental agenda" first.

"Kamala Harris was one of only 10 members of the Senate to vote against the USMCA. She said it didn't go far enough on climate change. I mean, Arizona, you deserve to know Joe Biden's running mate put her radical environmental agenda ahead of Arizona jobs and ahead of American workers," he said.

-ABC News' Justin Gomez

President Donald Trump visited the largely maskless overflow crowd, which may be larger than the crowd for the rally itself, before his last rally of the day in Rochester, Minnesota.

Speaking to reporters, he continued to blast Gov. Tim Walz, calling it a "disgrace" for him to limit the crowd size to 250 people and saying he's a "weak governor" who has done a "terrible job."

"You got thousands of people that are injured by this," he said. "They spent hours and hours, maybe even days -- a couple of days. You got 25,000 people. It’s a disgrace."

He added, "So we’re going to get back in and speak to 250 people."

-ABC News Elizabeth Thomas