The Supreme Court will determine whether the courts of appeals have jurisdiction to review a non-citizen’s request that the Board of Immigration Appeals (“BIA”) equitably toll the 90-day filing deadline on the non-citizen’s motion to reopen the non-citizen’s removal proceeding due to ineffective assistance of counsel. Peterson, arguing by Court appointment in support of the lower court’s judgment, argues that the Fifth Circuit properly characterized Mata’s request to reopen his removal proceeding as an invitation for the BIA to reopen the proceeding sua sponte, and that the Fifth Circuit lacks jurisdiction to review the BIA’s discretionary decision. However, Mata contends that the Fifth Circuit erred in construing his request for equitable tolling as a request for the BIA to reopen the proceeding sua sponte, and that Congress specifically grants courts of appeals the jurisdiction to review final orders of removal and BIA decisions on motions to reopen via statute. Holder agrees with Mata that the Fifth Circuit mischaracterized Mata’s request to reopen and that Congress provided courts of appeals a statutory basis upon which to review final orders of removal and BIA decisions on motions to reopen. Holder further contends that courts should apply a deferential abuse-of-discretion standard in reviewing agency determinations. The Supreme Court’s ruling implicates the due process rights of non-citizens and the fairness and substantive legality of the immigration system.