The General Assembly shall not take action on any proposed amendment to the Constitution of the United States unless approved by 2/3 of the members elected to each branch of the General Assembly in a roll call vote. Such proposal shall be entered on the journals of each branch with the “ayes” and “nays” taken thereon. However, should the 2/3-vote requirement that the United States Congress presently requires to initiate an amendment to the United States Constitution change, this section shall simultaneously change so as to be compatible with the vote requirements of the United States Congress.