Thereafter, when the President transmits to the President of the Senate and to the Speaker of the House of Representatives his written declaration that no inability exists, he shall reassume the powers and duties of his office. Meanwhile, should a majority of all the Members of the Cabinet transmit within five days to the President of the Senate and to the Speaker of the House of Representatives, their written declaration that the President is unable to discharge the powers and duties of his office, the Congress shall decide the issue. For that purpose, the Congress shall convene, if it is not in session, within forty-eight hours, in accordance with its rules and without need of call.