Mr. "Let's call the witnesses" seems to NOT want his star witness involved. the reason is obvious ..
Why Adam Schiff doesn’t want anyone talking to the whistleblower
https://nypost.com/2019/12/30/why-ad...ergnet_4747003
The truth behind House Intelligence Chairman Adam Schiff’s role in  engineering President Trump’s impeachment may soon come out. Judicial  Watch, a nonprofit group promoting government transparency, is suing to  get the whistleblower’s emails.
 That’s good news. Because no matter what comes of Trump’s Senate trial, Schiff should be 
held accountable for his devious methods.
 
The public also needs the truth about the so-called whistleblower.  Real whistleblowers deserve to be treated like heroes. But Eric  Ciaramella — the man Judicial Watch and many media accounts have  identified as the whistleblower and who doesn’t deny it — is no hero.
 To dignify Ciaramella with the term “whistleblower” misrepresents  what he did. Sure, he filed what is technically called a whistleblower  complaint. But he 
had no firsthand knowledge  of Trump’s controversial July 25 phone call or motivations. Every  allegation in the complaint begins with “I learned from multiple US  officials,” or “multiple officials told me,” or “officials with direct  knowledge informed me.” Just gossip. He never names any sources.  Ciaramella acted as the anti-Trumpers’ front man. As for courage, not an  ounce: He is cowering from public view.
 Compare him to real whistleblowers. Jay Brainard, the top  Transportation Safety Administration official in Kansas, blew the  whistle this month, warning the TSA is lowering metal-detector  sensitivity levels to shorten airport lines. He went on TV to warn  against sacrificing safety for convenience.
 Similarly, Boeing ex-employee Ed Pierson is blowing the whistle  against the company for allegedly overworking assembly-line employees, 
leading to production errors that could cause 737 MAX planes to malfunction or crash. (Boeing denies a connection.)
 Real whistleblowers speak from firsthand knowledge. They muster the  courage to expose dangers or abuses that would otherwise go unreported.  Movies are made about heroes like former cigarette company executive  Jeffrey Wigand, who went on “60 Minutes” to expose the industry coverup  of addiction.
 
During hearings, Schiff cracked his gavel repeatedly to silence questions  from Republicans about the whistleblower. Truth is, Schiff was  protecting himself. Even now, if the whistleblower talks, details of  Schiff’s role in launching the complaint may come out.
 What is already known is that on July 26, one day after Trump’s call  with the Ukrainian president, Schiff hired Sean Misko to join his staff.  Shortly after that hire, Schiff’s staff met with Ciaramella, a friend  and co-worker of Misko’s in the intelligence community. Schiff’s staff  gave Ciaramella “guidance” on how to make a complaint. A cozy  arrangement. The emails will likely divulge more.
                                                                                                                                                                                                                              
 
 Schiff concealed these dealings until the New York Times caught him  in the lie. Schiff also withheld from House investigators documents  detailing how his staff aided the whistleblower.
 The whistleblower filed his complaint with intelligence community  Inspector General Michael Atkinson on Aug. 12, also concealing that he  had met with Schiff’s staff. When the complaint became public in  September, Schiff feigned surprise.
 Even worse, Schiff 
obscured how the whistleblower complaint  ever saw the light of day. The big question is why Atkinson deemed the  complaint “credible” enough to be reported to Congress — the trigger  required for Schiff to launch an impeachment investigation.
 The document contained nothing but “second-hand or unsubstantiated  assertions” that regulations say are insufficient for a complaint to be  acted on. Accounts of wrongdoing from co-workers don’t qualify.  Atkinson’s Sept. 30 statement defending his decision to deem the  complaint “credible” amounts to: “I did it, because I did it.” He never  gave a reason.
 
Atkinson’s Oct. 4 closed-door testimony to the House Intelligence  Committee undoubtedly offers answers, but Schiff refuses to let even  House members see it. The transcripts of all the 18 other witnesses  have been released, but not Atkinson’s. It’s a stunning omission.
 By concealing that testimony, Schiff is propping up what Assistant  Attorney General Steven Engel calls the whistleblower’s “hearsay report”  and keeping Schiff’s own role in launching the complaint under wraps.
 But the truth about Schiff’s intrigues will likely be uncovered in  the emails Judicial Watch is seeking. Sadly, too late to spare the  nation from impeachment.