Frmr. @RepMikeRogers (GOP Intel Committee chair) on @realDonaldTrump and @RandPaul calling to unmask the whistleblower (whose identity is protected under a 2012 U.S. law)
Since the whistleblowers's accusations have been corroborated by numerous (firsthand) witnesses, the only reason to "unmask" would be exactly what the law is intended to guard against: retaliation.