That evidence, from Pence aide Jennifer Williams, has been the subject of a dispute between the House impeachment investigators and the vice president. House Intelligence Committee Chair Adam Schiff has said that “there is no legitimate basis for the Office of Vice President to assert that the information” relating to a Sept. 18 call Pence had with Ukrainian President Volodymyr Zelensky should be classified, but it remains undisclosed to the public.
As I explained in December:
Though the vice president’s office, along with the rest of the administration, has stonewalled the impeachment inquiry’s requests for documents, Schiff’s committee obtained information about the Sept. 18 call through Jennifer Williams, a Pence aide who has already testified. Initially, Schiff explained, Williams testified about Pence’s call and did not assert that any part of it was classified. When she testified publicly, however, she said Pence’s office had since determined that the call was classified. She later sent the committee a “supplemental submission” after reviewing “materials” that refreshed her memory about the call — and it’s that supplemental submission that Schiff would like to see declassified.