No . . . because this is a background investigation.  NOT (at least so far) a criminal investigation and I don't think it will turn into a criminal investigation unless Senator Grassley makes a referral.  The optics would be nonstop 24/7/365 by the propaganda media and distract from other coming events. However, I can see it very easily morphing into a National Security investigation depending on the coordination and bad faith on Feinstein's part (and/or others) -- or perhaps there is a parallel investigation currently ongoing.  This does involve the United States Supreme Court, which is the highest level of the third prong of our government! But in the background investigation there are no subpoenas and the FBI cannot demand anything substantive.  They just document the he said -- she said -- they said. P.S. -- Contempt would be contempt of Court or contempt of Congress.  There is no contempt of FBI.  There is obstruction -- but not from refusing to hand-over incriminating documents.