President-elect Joe Biden is moving forward with transition plans, capping a tumultuous and tension-filled campaign during a historic pandemic against President Donald Trump, who still refuses to concede the election one week after Biden was projected as the winner of the presidential race.
Trump has largely hunkered down inside the White House since the election, but on Saturday his motorcade drove drove past supporters gathered to rally in Washington, D.C., on his way to play golf.
Biden, meanwhile, is pressing forward, meeting with transition advisers in Delaware and calling Trump's refusal to concede "an embarrassment."
The Biden transition team and the Trump administration are in a standoff over whether Biden should be granted access to federal resources allocated for the transition of power. The General Services Administration, headed by a Trump appointee, has yet to officially recognize Biden as the victor in the election, preventing Biden's team from gaining full access to government funds and security information.
But a growing number of Republican senators are calling on the administration to start giving Biden classified intelligence briefings, a sign that support for Trump's refusal to concede the election may be waning among his allies on Capitol Hill.
Trump reverses tacit concession to Biden
After tweeting that Joe Biden won the election, President Trump later retreated from his tacit concession, saying the former vice president "only won in the eyes of the FAKE NEWS MEDIA."
Trump again claimed the election was "rigged," writing in a tweet, "WE WILL WIN!"
Twitter added warnings to the president's newest election tweets, noting that this "claim of election fraud is disputed."
Trump admits Joe Biden won the 2020 election for the 1st time, says it was 'rigged'
President Donald Trump tweeted early Sunday morning that Joe Biden "won because the Election was Rigged."
This is the first time that he has admitted to losing to Biden.
In the same post, Trump claimed that no vote watchers or observers had been allowed and the vote was tabulated by a company on the "Radical Left."
Trump has repeatedly claimed without evidence that there was voter fraud in the election. His campaign has filed a series of legal challenges in a number of states that have been based on vague and unsupported allegations of fraud.
Meanwhile, Biden's transition team has been progressing despite the Trump administration’s continued refusal to concede and recognize a new president-elect.
Pence to attend NASA-SpaceX launch
Vice President Mike Pence and Second Lady Karen Pence will be at the Cape Canaveral Air Force Station Sunday to see the attempted launch of Crew-1 mission to the International Space Station, which is currently set for at around 7:27 p.m. eastern time.
At least 20 arrested at DC protests, 1 person stabbed
At least 20 people were arrested as pro-Trump demonstrators and counterprotesters gathered in the nation's capital on Saturday.
The majority were arrested for minor incidents. However, late in the day, as the crowds thinned and the scene got more violent, police said one protester was stabbed multiple times. Seven guns were confiscated during the day's events as well, police said.
The Metropolitan Police Department did not release the charges for all 20 people, but said earlier in the day that four people were arrested for firearms violations, two were arrested for simple assault, two were arrested for disorderly conduct, one person was arrested for not having a permit and one was arrested for assault on a police officer.
Two police officers were also injured.
The Metropolitan Police Department announced the arrests just before 10 p.m., but said a full report of those arrested would be released on Sunday.
Police had warned those set to gather for the event that open carry of firearms is illegal in Washington, D.C. Authorities were hoping to stem the tradition of some so-called militia groups who have shown up to protests around the nation openly displaying weapons.
The large groups marching in Washington during the daylight hours were largely peaceful.
ABC News' Ben Siu and Will Gretsky contributed to this report.