; (D) three members shall be appointed by the minority leader of the Senate, from among current Members of the Senate; and (E) three members shall be appointed by the minority leader of the House of Representatives, from among current Members of the House of Representatives. (2) Initial appointments Initial appointments to the Commission shall be made not later than 60 days after the establishment of the Commission. (3) Vacancy A vacancy on the Commission shall be filled in the same manner as the initial appointment. (c) Co-Chairpersons From among the members appointed under paragraph (1), the President shall designate 2 members, who shall not be of the same political party, to serve as Co-Chairpersons of the Commission. (d) Qualifications Members appointed to the Commission shall have significant depth of experience and responsibilities in matters relating to government service, fiscal policy, economics, Federal agency management or private sector management, public administration, and law. (e) Duties (1) In general The Commission shall identify policies to improve the fiscal situation in the medium term and to achieve fiscal sustainability over the long term. (2) Requirements In carrying out paragraph (1), the Commission shall— (A) propose recommendations designed to balance the budget, excluding interest payments on the debt, by the end of the 10-year period beginning on the date on which the Commission is established, in order to stabilize the debt-to-GDP ratio at an acceptable level