Election 2020 updates: Biden warns of 'dark winter,' pushes masks in pandemic plan

Michigan Secretary of State Jocelyn Benson said that the Trump campaign's claim there is not enough transparency in the ballot counting process "doesn't really line up with the facts."

"In our experience here in the state where we actually have bipartisan poll watchers, a number of other people, a lot of people with eyes on the process," she said.

"We always knew we'd be here from when the polls closed as we went through that tabulation, there would be a lot of efforts to undermine people's perceptions about the integrity of our process," Benson added. "But we've always had a lot of faith in the truth underneath our work."

The percentage of expected vote in Pennsylvania has ticked up from 84% to 88%, the percent of mail-in ballots counted has increased from nearly 59% to nearly 71%, and Joe Biden has decreased his deficit with Donald Trump from 320,000 votes to 186,755.

There are roughly 850,000 total outstanding ballots. Of those, 763,311 are mail-in ballots and registered Democrats returned mail-in-ballots by a 3-to-1 margin compared to registered Republicans. Additionally, several of the most-Democratic counties in the state continue to be where the largest number of outstanding votes are located, including Philadelphia and Allegheny counties -- home to the state's two largest cities -- both pivotal to Biden's catch-up effort.

-ABC News' Adam Kelsey

Pennsylvania Secretary of State Kathy Boockvar told ABC News Chief Anchor George Stephanopoulos they are "ahead of schedule" and the state has under 1 million ballots left to count.

"We're actually ahead of schedule of where I thought we'd be," she said. "So I've been saying that I thought the overwhelming majority of ballots would be counted by Friday. I now believe that the overwhelming majority of ballots will be counted by tomorrow."

Boockvar also said that she thought legal action from Trump would not make a difference in the election results.

"What we care about here is making sure that every qualified voter -- that their vote counts, that their voices get heard and we want to make sure no voter is disenfranchised when they're a qualified voter," she said. "So we're going to count every vote and, hey, that's what makes our democracy great."

Before the chaotic protests at a processing facility in Detroit, where poll workers were tallying votes, the Macomb County GOP encouraged supporters on Wednesday morning to stop by the TCF Center in Detroit, urging "all hands on deck!"

"Trained Poll Challengers and or Volunteers willing to be trained needed immediately at TCF Center (Cobo Hall)," the email, which was obtained by ABC News, reads.

The email makes the baseless claim that "questionable" ballots came in at 3 a.m. Wednesday.

ABC News reached out to the Macomb County Republican Party, but has not heard back.

-ABC News' Kendall Karson