Wisconsin Department of Health Services told ABC News that a total of five cases have been linked to four different Trump rallies over the last three months.

Here's how the cases breakdown: One case from Oshkosh Trump rally on Aug. 17; One case from Mosinee Trump rally on Sept. 17; Two cases from Janesville Trump rally on Oct. 17; One case from Waukesha Trump rally on Oct. 24

In addition, the health department has identified one case linked to a Biden campaign rally in Manitowoc on Sept. 21.

As ABC News has previously reported, in Minnesota, at least 23 cases have been linked to coronavirus outbreaks from three Trump/Pence campaign rallies in September, and North Carolina on Thursday announced that two people who attended a Trump rally in Gaston County on Oct. 21 have tested positive.

However, Wisconsin Health Services Department cautioned that the above cases from Wisconsin "don't necessarily provide a complete picture."

"Because of the sheer volume they’re working with, our contact tracers are conducting abbreviated versions of full interviews and may not capture all details about where an infection was acquired," Wisconsin health department spokesperson Elizabeth Goodsitt told ABC News. "Also, the people below reported other possible exposures, so we can’t say for sure these events were or were not the cause of these cases."

-ABC News' Soorin Kim

Departing the White House for a three-state tour of Michigan, Wisconsin and Minnesota, the president aired his grievances with Minnesota's coronavirus measures imposed by the state's Democratic governor which will restrict his rally size -- for the first time -- to 250 people, while arguing he has "biggest crowds in the history of politics."

"We have 25,000 people in Minnesota, which is our last stop today. Twenty-five thousand people want to be there, and they say you can only have 250 people. So they thought I’d cancel, but I'm not canceling," Trump said, adding his supporters are still angry from civil unrest over the summer.

"And I think it's going to flip for the first time since 1972," Trump added.

After losing Minnesota to Hillary Clinton by just 44,000 votes in 2016, Trump has set his sights on flipping the historically blue state, which has not voted for a Republican presidential candidate since 1972. His visit on Friday will be his fourth trip to the state this year and his eighth visit in the last four years.

But Trump is also facing a surging coronavirus pandemic in the Midwest, as Minnesota state health protocols currently mandate that all large gatherings be limited to 250 people, which the Trump campaign has deemed "free speech-stifling" ahead of the president touching down in Rochester.

Trump narrowly lost Olmsted County, which includes the city of Rochester, by 598 votes in 2016. Although once a fundamentally Republican area, Obama carried the county twice, and now the Trump campaign has devoted increased resources into flipping such districts and courting voters in surrounding rural communities.

The former vice president is set to appear at a drive-in campaign event in St. Paul -- where Democrats have historically performed well -- just one hour before the president is scheduled to appear to take the stage an hour south.

The candidates' visits come one day after the state's reported its single highest daily increase on record. They also come on the heels of the the Eighth Circuit Court of Appeals' decision to require all absentee ballots in Minnesota to be received by local officials 8 p.m. on Nov. 3 in order to be counted -- a victory for Trump who has demanded all votes be tabulated on election night, though votes are always certified in the coming days and weeks.

FiveThirtyEight's polling average currently has Biden leading in Minnesota by 8 points.

-ABC News' Arielle Mitropoulos contributed to this report.

Sen. Kamala Harris is taking to Texas this afternoon, becoming the first member of either major party ticket to attend a non-fundraiser event in the state since the general election campaign got underway and the first Democrat vice presidential candidate to campaign in the state since 1988.

Though Biden made a noteworthy stop in Dallas during the primaries in March -- where Minnesota Sen. Amy Klobuchar, Pete Buttigieg and Beto O'Rourke joined him to lend their official endorsements -- Friday's events mark the Democratic ticket's acknowledgement that the state -- and other significant races across the state -- may be in play.

The visit comes after several prominent Texas Democrats made public pleas for Biden or Harris to visit, noting that, in addition to any boost in the presidential race, their presence would bolster local candidates.

"We need some help from the national ticket,” O’Rourke said on a Texas Democratic Party call last week.

Harris will visit Fort Worth, McAllen and Houston, in what would appear to be a play to solidify the Democrats' inroads with suburban voters and Latino voters at the border.

Beyond the presidential race, not only are there opportunities to convert additional suburban voters and run up the score in Democratic strongholds, but the party is further hopeful that Harris' presence can have a trickle-down effect on congressional contests.
 
-ABC News’ Adam Kelsey

As the country enters what many scientists are calling a new wave of the coronavirus pandemic and the presidential candidates make their final pitches to voters in battleground states, here’s an update of the COVID-19 situation in 13 states ABC News rates as competitive for the presidential election (either toss-ups, leaning Democrat or leaning Republican).

Eight battleground states -- Iowa, Michigan, Minnesota, North Carolina, Ohio, Pennsylvania, Texas and Wisconsin -- are experiencing a rise in all three metrics: cases, hospitalizations and deaths.

Rate of positivity:

Current hospitalizations:

Daily deaths:

-ABC News' Soorin Kim, Arielle Mitropoulos, Ben Bell and Brian Hartman

Biden’s campaign has announced that he will be spending at least part of the last 72 hours in the 2020 race in the Pennsylvania -- an indication of just how important Democrats believe the Keystone State will be in determining a winner.

On Sunday, Biden will travel to Philadelphia to “discuss bringing Americans together to address the crises facing the country and win the battle for the soul of the nation.”

On Monday, Biden and former second lady Jill Biden, along with Sen. Kamala Harris and her husband Doug Emhoff plan to "barnstorm" the state, spreading out across all the four corners.

Biden’s speech on Sunday offers a bit of a full circle moment for for the former vice president, who held his "campaign launch rally" in Philadelphia on May 18, 2019, and laid out his campaign vision for unifying the country in the remarks just under a month after launching his third run for president.

Pennsylvania is by far the state Biden has visited the most in the 2020 general election and one that holds a particular importance to him.

"I'm going to win Pennsylvania. It's a matter of a great deal to me, personally as well as politically," Biden told reporters Monday.

Trump will take to Pennsylvania Saturday for three rallies, and he’s still planning to barnstorm nearly a dozen events in the final 48 hours across states he carried in 2016.

FiveThirtyEight currently places Pennsylvania as the likeliest "tipping-point state" in its forecast or the state that could determine the winner of the Electoral College.

-ABC News' Molly Nagle