president clinton, ken starr interviewed white house staff. president clinton provided responses to 81 inter-roygtorys. unlike the president, president trump has stone walled the investigation at every turn. as far back as april, the president expressed his intent to stonewall. >> we're fighting all the subpoenas. >> more recently, on october the 8th, white house counsel, pat cipollone offered this sentiment in a letter that all official branch officials not testify in this impeachment inquiry. are you aware have that letter, mr. goldman? >> yes, i am. >> is it fair to say president trump is the only president in the history of our country to seek to completely obstruct an impeachment inquiry undertaken by this house? >> that is correct, it is unprecedented. >> in fact, pursuant to