Britt said it is “absolutely appropriate” for Congress to ask questions about the Fed renovation and get answers, but suggested the criminal probe route is not the right mechanism and that the matter should be resolved through other means.Senator Thom Tillis of North Carolina has publicly committed to blocking Warsh’s nomination in committee until the DOJ drops its criminal investigation into Powell, effectively tying the 12 to 10 Republican committee majority.Powell’s term as Fed chair expires May 15, meaning any further delay by the DOJ or Tillis will produce a leadership gap at the central bank for the first time in decades.