House Intelligence Committee chairman Rep. Adam Schiff (D-CA) investigated Ranking Member Devin Nunes (D-CA) as part of his impeachment inquiry into President Donald Trump, the committee report revealed on Tuesday.

The revelation that Schiff had obtained telephone records related to Nunes was the only new revelation in the report, which otherwise re-hashed Democrats’ arguments in favor of impeaching Trump for allegedly asking Ukraine to interfere in the 2020 election.

In a press conference Tuesday afternoon, Schiff declined to say when the committee had obtained the records, but given the Democrats’ repeated questions during the inquiry about administration officials who had worked with Nunes, such as former Intelligence Committee staffer (now National Security Council official) Kash Patel, it is likely the Democrats sought those records before or during the hearings.

The report cites media reports that Lev Parnas, an associate of Rudy Giuliani who has ben indicted on campaign finance charges, claimed that Nunes tried to meet with Ukrainians to “dig up dirt” on former Vice President Joe Biden. (Nunes had threatened to sue those media outlets, and did so on Tuesday, suing CNN for defamation; he does not appear to have been given an opportunity to answer the allegations in the report.)

Shifts report also cites “phone records” showing apparent conversations between Giuliani and Nunes, as well as Parnas and Nunes, in April 2019, around the time that then-U.S. Ambassador to Ukraine Marie Yovanovitch was criticized in the media. The report also cites records of phone calls between Giuliani and Nunes staffer Derek Harvey, as well as between Giuliani and Patel. The phone records were apparently obtained from AT&T, according to a footnote in the report.

While Schiff probed Nunes’s phone calls, he and his party have resisted calls for the so-called “whistleblower” to testify, including about his contacts with Schiff and his staff. Schiff claimed that the whistleblower had no contact with the committee, until a New York Times report revealed that the whistleblower had, in fact, been in touch with Democrat committee staff.

Schiff has also rejected Republican calls to have him testify as a fact witness about his contacts with the whistleblower.

Joel B. Pollak is Senior Editor-at-Large at Breitbart News. He earned an A.B. in Social Studies and Environmental Science and Public Policy from Harvard College, and a J.D. from Harvard Law School. He is a winner of the 2018 Robert Novak Journalism Alumni Fellowship. He is also the co-author of How Trump Won: The Inside Story of a Revolution, which is available from Regnery. Follow him on Twitter at @joelpollak.