Pat Cipollone the White House Counsel sent a letter to Rep. Jerry Nadler the Chairman of House Judiciary Committee arguing that his request for documents was illegitimate.

“It appears that the Committee’s inquiry is designed, not to further a legitimate legislative purpose, but rather to conduct a pseudo law enforcement investigation on matters that were already the subject of the Special Counsel’s long-running investigation and are outside the constitutional authority of the legislative branch,” Cipollone wrote.

“Congressional investigations are intended to obtain information to aid in evaluating potential legislation, not to harass political opponents or to pursue an unauthorized ‘do-over’ of exhaustive law enforcement investigations conducted by the Department of Justice,” he added.