Of course, Rosenstein is not going to hand any material that would show the whole thing is a huge witch-hunt. The 'there is nothing there' texts between Strzok and Page further proved this point.
Furthermore, Rosenstein should have recused himself as he is a very important witness to this sham 'investigation'.
"As evidenced by the July 21, 2018 release of the Carter Page FISA application, under Mr. Rosenstein’s supervision, the “dossier” compiled by Christopher Steele on behalf of the Democratic National Committee and the Hillary Clinton campaign formed a material part of the FISA application. Under Mr. Rosenstein’s supervision, the Department of Justice and FBI intentionally obfuscated the fact the dossier was originally a political opposition research document before the FISC. Under Mr. Rosenstein’s supervision, Christopher Steele’s political opposition research was neither vetted before it was used in October 2016 nor fully revealed to the FISC, given Director Comey’s June 2017 testimony the dossier was“salacious and unverified.”As Deputy Attorney General, Mr. Rosenstein has failed in his responsibility for the proper authorization of searches under FISA, and his conduct related to the surveillance of American citizens working on the Trump campaign has permanently undermined both public and congressional confidence in significant counterintelligence program processes. Under Mr. Rosenstein’s supervision, the public’s confidence in the integrity of the FISA process depends on the court’s ability to hold the government to the highest-standard-particularly as it relates to surveillance of American citizens;Given Mr. Rosenstein’s oversight of the FISA process is a central issue in the current congressional investigation into certain decisions made and not made by the Department of Justice and FBI in 2016 and 2017, he has actual and potential conflicts of interest requiring the appointment of a second Special Counsel. Wherefore, Rod Rosenstein, by such conduct, warrants impeachment and trial, and removal from office."