They said on Thursday that Biden is entitled to intelligence briefings even if they were not ready to recognize him as the winner of the disputed election on November 3.
Most Republican officials and lawmakers have publicly remained behind the Trump campaign’s push to contest the result through lawsuits challenging vote counts in individual states.
The president’s campaign has filed a string of lawsuits since the media declared Biden the winner, with Trump repeatedly claiming that there was widespread voting fraud.
Hand-count audits, meanwhile, in over six counties in the battleground state of Arizona, where Biden continues to lead, found only minor discrepancies, according to the secretary of state's office.
The audits involve hand counts of a random sampling of ballots.
Biden, meanwhile, has been moving ahead with the work of preparing to govern as his fellow Democrats in Congress criticized Republican election “shenanigans” and urged action on the worsening coronavirus pandemic.