At the first regular meeting in December following the general election in every even-numbered year, the council shall elect one of its members as president, who shall be ex officio mayor, and another as vice president, who shall serve in the absence of the president. In the absence of the president and the vice president, the council may elect a temporary chairperson. The president shall preside over the council and have a voice and vote in its proceedings but no veto. The president shall be recognized as the official head of the city for all ceremonial purposes, by the courts for the purpose of serving civil process, and by the Governor for military purposes. In addition, the president shall exercise such other powers and perform such duties, not inconsistent with sections 19-601 to 19-648, as are conferred upon the mayor of the city.