Michael Flynn's attorney Sidney Powell on Tuesday filed an emergency writ of mandamus to the D.C. Circuit Court of Appeals seeking the immediate removal of Judge Emmet Sulivan from the case -- and saying that under appellate precedent set by the "Fokker Services" case, Sullivan or his replacement must dismiss the prosecution, as the Justice Department has requested. Writs of mandamus are extraordinary remedies, which are appropriate when there has been a "usurpation of judicial power" that is "clear and indisputable" -- and, Powell argued, Sullivan's behavior fits the bill. Powell also demanded the appellate court vacate Sullivan's order appointing...