The leader of the agency responsible for approving the immunization, Dr. Stephen Hahn, maintained Sunday that the authorization was made as quickly as possible, despite claims to the contrary by President Donald Trump.

In an interview with Fox News Saturday, Trump, after seeming to take credit for the speed of the vaccine's development, said that the Food and Drug Administration could have authorized the shot for emergency use "last week."

"We do not feel that this could have been out a week earlier," Dr. Stephen Hahn, the FDA commissioner, said on ABC's "This Week." "We went through our process. We promised the American people that we would do a thorough review of the application and that's what we did. We followed our process."

Full story here.

- Adam Kelsey

New Jersey will begin giving its health care workers the COVID-19 vaccine Tuesday morning at University Hospital in Newark, the state's governor said on ABC's "This Week" Sunday.

"The first batch of 76,000, split the majority toward health care workers but a good slug toward our long-term care residents and staff, and then with each ensuing week those are the two top priorities," Gov. Phil Murphy, D-N.J., told "This Week" co-anchor Martha Raddatz.

"It'll take us a number of weeks as you can imagine to work through the entire populations in both of those groups, but it's gonna be a big day on Tuesday morning in Newark," he added.

Full story here.

- Adia Robinson

Another Cybersecurity and Infrastructure Security Administration official is stepping down at the end of the week.

Matt Masterson, a top official at CISA, who was instrumental in securing the 2020 election, confirmed on Twitter he's leaving for a position at Stanford University.

Masterson tweeted that he can't wait to work with the staff and students at Stanford.

The news comes after former CISA Director Chris Krebs was fired via tweet by President Donald Trump in November. The president bristled at Krebs' assertion that there was no evidence of fraud in the election.

Bryan Ware, another of Krebs' top lieutenants at the agency, stepped down just before his boss was fired last month.

-ABC News' Luke Barr

Sparks flew Saturday as justices on the Wisconsin Supreme Court questioned Jim Troupis, a lawyer for the Trump campaign who argued that the state should throw out 220,000 votes from Dane and Milwaukee counties.

Justice Jill Karofsky lit into Troupis under 10 minutes into the hearing, accusing the campaign of trying to disenfranchise Black voters.

“In your lawsuit, what you have done here, is you have targeted the vote of almost a quarter of a million people, a quarter of a million people not statewide in Wisconsin, but … in two of our 72 counties, two counties that are targeted because of their diverse populations, because they're urban; I presume because they vote Democratic. This lawsuit, Mr. Troupis, smacks of racism,” Karofsky said.

Troupis and the Trump campaign argued that the court should throw out four categories of votes they said did not follow state statute, including absentee ballots delivered in person at a “Get Out the Vote” event in a park, ballots applied for with a specific mail-in form, ballots missing the address of a signed witness and ballots applied for by “indefinitely confined voters.”

As the hearing continued, Justice Rebecca Dallet once again homed in on the demographic makeup of Milwaukee and Dane counties, noting that the Trump campaign was “not asking … to throw out votes in any other county.” Troupis became defensive, telling the justices that the Biden campaign could have asked for the recount to encompass the whole state.

“You made a statement, as if this was a choice based on criteria that simply are not true,” Troupis said before Dallet jumped on him.

“Who chooses which counties to ask for a recount?” Dallet asked.

Troupis responded “the candidate,” to which Dallet noted the president “had a choice when it came to the recount of which counties. … He chose to only challenge votes in the most urban, non-white, largest counties that voted overwhelmingly for Joe Biden.”

-ABC News' Alex Hosenball and Matt Mosk

Up against Tuesday's "safe harbor" deadline, Georgia Secretary of State Brad Raffensperger said that he will recertify that Biden won Georgia's election sometime Monday following the state's third recount of the presidential vote there which has Biden ahead by nearly 12,000 votes.

"It's been a long 34 days since the election on Nov. 3. We have now counted legally cast ballots, three times, and the results remain unchanged," Raffensperger told reporters.

As he did in his WSJ op-ed this morning, the secretary equated how former gubernatorial candidate Stacey Abrams acted after her 2018 loss and Trump's behavior in 2020.

"Whether it's the president of the United States or a failed gubernatorial candidate ... disinformation regarding election administration should be condemned and rejected," he said. "All this talk of a stolen election, whether it's Stacey Abrams, or the president of the United States is hurting our state."

Raffensperger also said that "the focus on Nov. 3 is drawing energy away from" the state's goals of job growth, efficient COVID-19 vaccine distribution and "getting back to normal."

"I know there are people that are convinced the election was fraught with problems, but the evidence -- the actual evidence, the facts -- tell us a different story," he said.

Gabriel Sterling, the voting system implementation manager in Raffensperger's office, came to the podium afterward to fact check some of the misinformation that the president has helped spread. In one example, he directly called out the president's legal team for how they've tried to "mislead" people about a video from counting occurring in State Farm Arena in Fulton County that Trump played at his rally in Valdosta on Saturday night.

"What's really frustrating is the president's attorneys had this same videotape. They saw the exact same things the rest of us could see, and they chose to mislead state senators and the public about what was on that video," he said, debunking the notion that there were "magic ballots" that showed up in the state's largest county.

"They knew it was untrue and they continue to do things like this," Sterling said. "We continue to see people who are put in positions of responsibility, sending out this disinformation and undermining the electoral system," he added later.Minutes after Raffensperger told reporters he would receritfy the vote Monday, Trump continued his attacks on election officials in the state on Twitter, targeting GOP Gov. Brian Kemp for signature verification saying he'd have an "easy win" were it conducted -- but signature verification was already done twice for absentee ballots in the state, and the vote was recounted three times affirming Biden's win.

-ABC News' Quinn Scanlan