Sen. Sherrod Brown (D-Ohio) and at least 13 other Democratic senators wrote a letter to the Biden transition team recommending their former colleague.
The former acting attorney general said the president has spent his term using "his position to defend himself, rather than our country."
Democrats say they were blindsided by news of the interview requests.
Special Counsel Robert Mueller has reportedly told Donald Trump’s legal team that the president is “not currently a criminal target.” But that doesn’t mean he’s out of the woods.
"We can’t control whether our public servants lie to us. But we can control whether we hold them accountable," she wrote in a USA Today op-ed.
How many times might President Donald Trump obstructed justice? Turns out, lots.
She attacked Trump for saying that he would not have appointed Attorney General Jeff Sessions because he recused himself from the Russia probes.