Upon enactment of this Act, it shall be the duty of the President of the United States, not later than July 3, 1958, to certify such fact to the Governor of Alaska. Thereupon the Governor, on or after July 3, 1958, and not later than August 1, 1958, shall issue his proclamation for the elections, as hereinafter provided, for officers of all elective offices and in the manner provided for by the constitution of the proposed State of Alaska, but the officers so elected shall in any event include two Senators and one Representative in Congress.