; and (2) with full recognition of the constitutional right of either House to change the rules (so far as relating to the procedure of that House) at any time, in the same manner, and to the same extent as in the case of any other rule of that House. 8. Termination of Commission The Commission shall terminate on the date that is 12 years after the date of enactment of this Act. 9. Authorization of appropriations (a) In general There is authorized to be appropriated to the Commission to carry out this Act such sums as may be necessary for fiscal years 2020 through 2029. (b) Availability Any sums appropriated under the authorization contained in this section shall remain available, without fiscal year limitation, until expended.