In 1960, a referendum, that functioned as Electoral College, was held that asked the general public:""Do you have confidence in Muhammad Ayub Khan?"." The voter turnout was recorded at 95.6% and such confirmation was used as impetus to formalise the new system – a presidential system. Ayub Khan was elected president for the next five years and decided to pay his first state visit to United States with his wife and also daughter Begum Naseem Aurangzeb in July 1961. Highlights of his visit included a state dinner at Mount Vernon, a visit to the Islamic Center of Washington, and a ticker tape parade in New York City.