; Vacancies After its initial meeting, the Commission shall meet upon the call of the Chairperson or a majority of its members. Six members of the Commission shall constitute a quorum. Any vacancy in the Commission shall not affect its powers, but shall be filled in the same manner in which the original appointment was made. 4. Functions of the Commission (a) In General The functions of the Commission are to— (1) investigate the relevant facts and circumstances relating to the involvement of Antifa in the 2020 riots, including any relevant legislation, Executive order, regulation, plan, policy, practice, or procedure; (2) identify, review, and evaluate the lessons learned from such riots, regarding the structure, coordination, management policies, and procedures of the Federal Government, and, if appropriate, State and local governments and nongovernmental entities, relative to detecting, preventing, and responding to Antifa; and (3) submit to the President and Congress such reports as are required by this Act containing such findings, conclusions, and recommendations as the Commission shall determine, including proposing organization, coordination, planning, management arrangements, procedures, rules, and regulations. (b) Scope of Investigation For purposes of subsection (a)(1), the term facts and circumstances includes facts and circumstances relating to— (1) intelligence agencies; (2) law enforcement agencies; (3) diplomacy; (4) immigration, nonimmigrant visas, and border control; (5) the flow of assets to terrorist organizations, including Antifa; and (6) other areas of the public and private sectors determined relevant by the Commission for its inquiry. 5. Power of the Commission (a) Hearings and Evidence The Commission may, for purposes of carrying out this Act— (1) hold hearings, sit and act at times and places, take testimony, receive evidence, and administer oaths