Vice President-elect Kamala Harris received the President's Daily Brief at the U.S. Department of Commerce earlier Monday, according to a Harris aide.

As a member of the Senate Intelligence Committee, Harris had regular access to classified intelligence briefings, but Monday marked the first day she and Biden were slated to receive the President's Daily Brief. It followed the Trump administration refusing to recognize their apparent win for 16 days.

-ABC News’ Averi Harper

The Joint Congressional Committee on Inaugural Ceremonies (JCCIC), tasked with executing the inaugural ceremonies at the U.S. Capitol and currently chaired by Sen. Roy Blunt, R-Mo., who has not yet called Biden the president-elect, released a statement Monday afternoon saying that it would work with the Biden team but stopped short of recognizing the election results as decided.

“While the electoral process is still playing out, the Joint Congressional Committee on Inaugural Ceremonies is moving forward with plans for the swearing-in ceremonies that will be held on the West Front of the U.S. Capitol on January 20, 2021," a spokesperson for the JCCIC said in a statement. "Now that Vice President Biden has announced his Presidential Inaugural Committee, we will begin coordination with the PIC at a staff level to continue planning for Inaugural Ceremonies that are traditional, safe, and inclusive."

Though Blunt referred to Trump as "president-elect" in a statement released the day after the 2016 election, the Missouri Republican has deflected on using the term with Biden, telling CNN Sunday, "The president-elect will be the president-elect when the electors vote for him. There is no official job of president-elect."

Earlier on Monday, Biden and Vice President-elect Kamala Harris announced the formation of their Presidential Inaugural Committee, responsible for organizing inauguration-related activities.

-ABC News' Benjamin Siegel

Arizona has certified the results of the 2020 presidential election, affirming Biden’s victory and officially granting him the state’s 11 electoral votes.

Secretary of State Kathy Hobbs, a Democrat, certified the vote in the presence of Republican Gov. Doug Ducey and GOP Attorney General Mark Brnovich, on Monday morning.

“This election was conducted with transparency, accuracy and fairness in accordance with Arizona’s laws and election procedures -- despite numerous unfounded claims to the contrary," Hobbs said.

Ducey added he'll be signing the official documentation "today" to also make way for Arizona's Senator-elect Mark Kelly, who beat GOP Sen. Martha McSally in a special election, to be sworn into office "as swiftly as possible" with the certification of his victory being hand-delivered to the U.S. Senate.

As Hobbs certified the vote, Trump’s personal attorney Rudy Giuliani vowed in an ongoing "hearing" to continue contesting results in the state.

-ABC News' Meg Cunningham

Georgia Secretary of State Brad Raffensperger spoke before reporters Monday morning at the state capitol building in Atlanta and announced that his office has opened investigations into four third-party groups that he claimed are "working to register people in other states to vote here in Georgia."

However, Raffensperger also maintained the 2020 presidential election was the most secure election in the state's history and slammed against those peddling misinformation surrounding it.

"Once this recount is complete, everyone in Georgia will be able to have even more confidence in the results of our elections, despite the massive amounts of misinformation that is being spread by dishonest actors," Raffensperger said, adding the state's machine recount is on schedule to finish by the midnight Wednesday deadline.

"There are those who are exploiting the emotions of many Trump supporters with fantastic claims, half-truths, misinformation, and frankly, they're misleading the president, as well, apparently," he added.

Ahead of Senate runoffs Jan. 5, Raffensperger also warned, "Anyone telling you to boycott an election is not on your side."

Gabriel Sterling, the statewide voting system implementation manager, blasted lawsuits questioning the credibility of the state's electoral process as "fever dreams"and shot down the conspiracies about the election including that Dominion's voting machines flipped votes.

"The ridiculous things claimed in these lawsuits are just that, they're insanities, fever dream, made up, internet cabal," he said. "Nothing was shipped from overseas. No votes were switched. We did a hand audit that proved no votes were switched."

Sterling said he feels like he's "playing a game of Whac-A-Mole"-- that every time they shoot down one unfounded claim, another "new crazier one" pops up.

-ABC News' Quinn Scanlan