It seems like it. Either Trump or Pence have been subpoenaed.
Former federal prosecutor Nelson W. Cunningham , the author of the aforementioned Politico piece, noted that “when the witness lost the first time in the circuit court (before the quick round-trip to the district court), they unusually petitioned for rehearing en banc— meaning they thought their case was so important that it merited the very unusual action of convening all 10 of the D.C. Circuit judges to review the order.”
Cunningham argued that this itself was telling, but added that something else was “even more telling,” namely: “President Trump’s sole appointee to that court, Gregory Katsas , recused himself.” Trump attorney Jay Sekulow forcefully denied that this related to the president at all.
Would so many extraordinary measures be taken if it weren’t one of those two? I don’t think so.