WASHINGTON Former President Donald Trump s attempts to hide his actions from the congressional committee investigating the Jan. 6 attack on the U.S. Capitol , which he incited, would need the cooperation of Joe Biden , the man he claims is not the legitimate president and that cooperation will not be coming.

The president has already concluded that it would not be appropriate to assert executive privilege, White House press secretary Jen Psaki said Friday.

After the House select committee announced it was issuing subpoenas to four of Trumps former aides, Trump declared in a rambling statement Thursday night: We will fight the Subpoenas on Executive Privilege and other grounds, for the good of our Country.

But Trump is no longer president, and, legal experts agree, can no longer assert that privilege.

Theres a reason that its called executive privilege: because it belongs to the executive branch. The last time I checked, Joe Biden was in charge of that branch, not Donald Trump, said Norm Eisen, who served as an ethics lawyer in the Barack Obama White House and more recently worked for the House committee overseeing Trumps first impeachment.

Indeed, Trump would need to request that Biden whom Trump insults and belittles on a near-daily basis tell the House committee that communications between Trump and his former staff were out of bounds.

Trumps office did not respond to HuffPost queries about whether he has made any such request, but Psaki said Friday that she was not aware of one. We dont get regular outreach from the former president or his team, she said.

More important, though, she added that Biden was not inclined to go along with such a request even if it did come. We take this matter incredibly seriously, she said. We have been working closely with congressional committees and others as they work to get to the bottom of what happened on Jan. 6, an incredibly dark day in our democracy.