§ 4. Vacancy in presidency.
If it becomes necessary for the President of the City Council to fill the unexpired term of the Mayor, or in case of the death, resignation, removal or other disqualification of the President, the City Council, by a majority vote of its members, shall elect a new president for the unexpired term. The person so elected as President may, but need not, be, at the time of election, a member of the City Council.