In this 2019 case, Riley C. Walter successfully argued that the United States trustee for region 17 (“UST”) lacked authority to appoint unsecured creditors’ committees in Chapter 9 cases under 11 U.S.C. § 1102 (a)(1). Debtor also contends that § 105 (a) as implemented by Rule 2020 (providing the procedure to contest any act of the UST) authorizes the court to disband Committee.