; and (ii) 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. . 3. Limitation on use of funds of the Department of Defense to address national emergency at southern border (a) Prohibition Unless specifically authorized by law after the date of the enactment of this Act, no funds made available to the Secretary of Defense by any provision of law may be used to construct, upgrade, maintain, or replace any wall, barrier, fence, or other obstacle along the border between the United States and Mexico. (b) Restoration of funds All funds transferred pursuant to the memorandum of the Secretary of Defense dated September 3, 2019, entitled Military Construction Necessary to Support the Use of the Armed Forces in Addressing the National Emergency at the Southern Border and available for obligation as of the date of the enactment of this Act, shall be restored to the military construction accounts, and obligated for the original purposes, for which appropriations of those funds were made. 4. Review of contracts to construct, upgrade, maintain, or replace any wall, barrier, fence, or other obstacle along border between United States and Mexico (a) In general The Director of the Office of Government Ethics shall review any contract entered into on or after October 1, 2016, between the Federal Government and a private entity to construct, upgrade, maintain, or replace any wall, barrier, fence, or other obstacle along the border between the United States and Mexico. (b) Elements Any review of a contract conducted under subsection (a) shall include a review of whether— (1) any conflict of interest exists with respect to the contract and— (A) the President or the immediate family of the President; (B) the Vice President or the immediate family of the Vice President