In a Friday memo from the Office of Legal Counsel (OLC), acting Assistant Attorney General Dawn Johnsen said that the Treasury Department was required to defer to the congressional committee.

“The statute at issue here is unambiguous: ‘Upon written request’ of the chairman of one of the three congressional tax committees, the Secretary ‘shall furnish’ the requested tax information to the Committee,” Johnsen wrote in the 39-page memo.

“Applying the proper degree of deference due the Committee, we believe that there is ample basis to conclude that its June 2021 Request for former President Trump’s tax information would further the Committee’s principal stated objective of assessing the IRS’s presidential audit program—a plainly legitimate area for congressional inquiry and possible legislation.”