The few Republicans who made their own ascertainment in the 15 days since Mr. Biden won the election were increasingly more blunt in their assessment of Mr. Trump’s prospects for overturning the results. Senator Lisa Murkowski, Republican of Alaska, released a statement condemning the president’s pressure campaign on state legislatures as “not only unprecedented but inconsistent with our democratic process.” Mr. Hogan responded to Mr. Trump’s criticisms by suggesting that the president “stop golfing and concede.”
“Here again in Michigan, it’s not a razor-thin margin — it’s 154,000 votes,” Representative Fred Upton of Michigan, one of the first congressional Republicans to congratulate Mr. Biden and Ms. Harris, said in an appearance on CNN. Mr. Trump has made false charges of widespread fraud in Michigan and pressured state legislators to undo the results, but “154,000 votes is plenty to overcome,” Mr. Upton said. “I mean, it’s over.”
Other Republicans were more tentative on Sunday, but they edged toward recognizing Mr. Biden’s victory by amplifying calls for the Trump administration to allow the transition to begin, pushing for Mr. Biden to begin receiving intelligence briefings as part of that process. Senator John Cornyn, Republican of Texas, said on Twitter that “I agree briefings should occur” as he shared a clip of Ron Klain, the incoming White House chief of staff, warning of the consequences of withholding classified information and access to agency officials.
“It’s past time to start a transition, to at least cooperate with a transition,” Senator Kevin Cramer, Republican of North Dakota, said on Sunday, even as he insisted that Mr. Trump should have additional time to pursue legal challenges to the outcome of the election. “I’d rather have a president who has more than one day to prepare.”
Members of Mr. Biden’s transition team, even as they announced plans to unveil cabinet appointments on Tuesday, continued to warn that the new administration would be severely handicapped without advance intelligence briefings and updates on plans to develop and distribute a coronavirus vaccine.
Jennifer Psaki, a senior adviser to the transition team, said on CNN’s “State of the Union” that F.B.I. background checks, a key part of the confirmation of cabinet secretaries, could not be done until the General Services Administration “ascertained” Mr. Biden’s victory. The process would give Mr. Biden and his staff members access to federal resources, data and personnel.
The transition team wants to “talk to the people doing the job right now so that we can be ready,” Representative Cedric Richmond, a Louisiana Democrat who is set to leave his seat for a role in the Biden administration, said on NBC’s “Meet the Press.”