Republicans accuse Democrats of attempting to discredit Barr because he is reviewing the origins of the Trump-Russia investigation and looking into allegations that the Obama administration spied on Trump's campaign. NPR's Ayesha Rascoe is here with more.
A Republican congressional aide said the White House was not asserting executive privilege over the documents and pointed to Cipollone's readiness to respond to further congressional inquiries about the records.
White House counsel Pat Cipollone said McGahn does not have any "legal right" to the materials because they are controlled by the White House.
A lawyer for McGahn, William Burck, said he told his client to honor the White House request, unless the committee and Trump administration reach an agreement. The letter stopped short of invoking executive privilege, which, at this point, might be hard because the documents were already released to Mueller.
If the committee goes to court to try to compel McGahn to turn over records, it could lead to a test of executive privilege in the courts that could have implications for the numerous House investigations into the Trump administration.
The House Judiciary Committee has set a tentative date for Mueller to testify before their committee on May 15th, but these plans have not yet been finalized.
Mueller concluded that there was no collusion, but he punted on whether Trump obstructed justice. And obstruction of justice is what the Judiciary Committee is interested in. Republicans have largely united behind the president, with Senate Majority Leader Mitch McConnell on Tuesday declaring "case closed" on Mueller's Russian Federation probe and potential obstruction by Trump. These documents would deal with those accusations.
Nadler said that President Donald Trump had refused to hand over a single sheet of paper that has been requested, and the president has declared publicly that the executive branch will resist all subpoenas.
He added, "A letter from the White House in service of the President's apparent goal of blocking or delaying testimony that the President believes would be politically damaging is not a basis for Mr. McGahn to violate his legal obligation to appear before the Committee".
RASCOE: Yeah, this is a part of what has essentially become a blockade by the administration.
House Speaker Nancy Pelosi has said the next step will be consideration by the full House.
Attorney General William Barr released a redacted version to the public last month, but Democrats want to see the full document, plus underlying documents, and have scheduled a committee vote Wednesday to hold Barr in contempt for not providing it.
The White House gave McGahn permission to speak with Mueller.
Democrats made their case that Congress was at a historic juncture as it confronts what they consider Trump's stonewalling of lawmakers' ability to conduct oversight. The report's out, and there's nothing else to see here. Senator Mitch McConnell of Kentucky, the majority leader, stood on the floor of the upper chamber on Tuesday and pressed an fully assorted verdict: "Case closed." Trump has several times raised the possibly of pardons for his former associates.
SHAPIRO: So how does the standoff get resolved? That's likely what the White House is banking on.
State Senator Brad Hoylman, a Manhattan Democrat, confirmed on Tuesday that the State Senate has enough votes to ensure passage of a bill allowing the commissioner of the New York Department of Taxation and Finance to release any state tax return requested by a leader of one of three congressional committees for any "specific and legitimate legislative objective".