A writ of mandamus and an interlocutory appeal under 28 U.S.C. 1292(b) provide distinct avenues for seeking immediate appellate review of a district court order. In some circumstances, however, appellate courts have denied mandamus because the petitioner failed to pursue an appeal under § 1292(b).
Mandamus is a “drastic and extraordinary” remedy reserved for those exceptional circumstances when the district court has committed a clear abuse of discretion or usurpation of judicial power. Cheney v. U.S. District Court, 542 U.S. 367, 380 (2004). Seldom granted, it has been called one of “the most potent weapons in the judicial arsenal.” Will v. U.S., 389 U.S. 90, 107 (1967). While there are varying formulations of the standards for mandamus, at a minimum a petitioner must show that there is “no other adequate means to attain the relief he desires,” that the right to the relief sought is “clear and indisputable” and that the writ is otherwise “appropriate under the circumstances.” Cheney, 542 U.S. at 380 81.
