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

As Joe Biden takes the stage in Delaware Saturday night to deliver a victory speech, the Trump campaign is grappling with the reality of a loss.

"It's a horrible feeling," one Trump campaign aide told ABC News after the major networks called the race for Biden. Some staffers said they'd come to grips with losing in recent days, others said it didn't feel real until Fox News made the final call on Saturday, according to sources.

Though the Trump team has filed lawsuits in several states, sources familiar with the actions stress to ABC News that there has been internal bickering over the suits with some members of the president's legal team feeling they are "pointless" and "meritless."

With new numbers in from Apache and Coconino counties, Biden’s lead has widened slightly in Arizona. 

Biden's vote lead has jumped back up to 21,188 votes. He still leads 49.5% to Trump's 48.9%. 

The Arizona Secretary of State's office has not provided specific guidance on timing of the estimated 120,000 outstanding votes. 

It has, however, updated its website showing a more detailed look at which votes are outstanding. 

There are an estimated 12,199 early ballots waiting for signature verification, an estimated 45,507 provisional ballots left to process and an estimated 61,472 ballots waiting for tabulation, the office said. 

- ABC News’ Meg Cunningham

In an update to the Cybersecurity and Infrastructure Security Agency Rumor Control page, the agency assured Americans that there are robust safeguards in place to ensure accuracy of election results. 

“The systems and processes used by election officials to tabulate votes and certify official results are protected by various safeguards that help ensure the accuracy of election results,” the agency, a branch of the Department of Homeland Security, said.

It continued: “These safeguards include measures that help ensure tabulation systems function as intended, protect against malicious software, and enable the identification and correction of any irregularities.”

Trump has tweeted his first reaction to Biden's apparent win to be the next president of the United States, falsely claiming in an all-caps tweet that he won the election.

He also pushed the unfounded claim that observers weren't allowed in to watch ballots be counted, which is not true.