82 Constitution of Kenya, 2010 Deputy President die before assuming office— (a) the Speaker of the National Assembly shall act as President from the date on which the President-elect would otherwise have been sworn-in; and (b) a fresh presidential election shall be conducted within sixty days after the second death. Questions as to validity of presidential election. 140. (1) A person may file a petition in the Supreme Court to challenge the election of the President-elect within seven days after the date of the declaration of the results of the presidential election. (2) Within fourteen days after the filing of a petition under clause (1), the Supreme Court shall hear and determine the petition and its decision shall be final. (3) If the Supreme Court determines the election of the Presidentelect to be invalid, a fresh election shall be held within sixty days after the determination. Assumption of office of President. 141. (1) The swearing in of the President-elect shall be in public before the Chief Justice, or, in the absence of the Chief Justice, the Deputy Chief Justice. (2) The President-elect shall be sworn in on the first Tuesday following— (a) the fourteenth day after the date of the declaration of the result of the presidential election, if no petition has been filed under Article 140; or (b) the seventh day following the date on which the court renders a decision declaring the election to be valid, if any petition has been filed under Article 140. (3) The President-elect assumes office by taking and subscribing the oath or affirmation of allegiance, and the oath or affirmation for the execution of the functions of office, as prescribed in the Third Schedule. (4) Parliament shall by legislation provide for the procedure and ceremony for the swearing-in of a President-elect.