Chief of Staff to the Prime Minister (Canada) hold the formal title chief of staff. Bernard Roy, Brian Mulroney's principal secretary from 1984 to 1988, was the last principal secretary to act as head of the PMO before the creation of the chief of staff position. Chief of Staff to the Prime Minister (Canada) The Chief of Staff of Canada's Prime Minister's Office is the top official of the office. The position was created in 1987 to head the PMO. Prior to the creation of the chief of staff position, the office was headed by the Prime Minister's Principal Secretary, a position which is now secondary to the
Prime Minister of Latvia Party: Prime Minister of Latvia The Prime Minister of Latvia () is the most powerful member of the Government of Latvia, and presides over the Latvian Cabinet of Ministers. The Prime Minister is nominated by the President of Latvia, but must be able to obtain the support of a majority of the Saeima (parliament). The tables below display all Latvian Prime Ministers from both the first period of Latvian independence (1918–1940) and since the country regained its independence (1990–present). From 1990 to 6 July 1993, the office was known as Chairman of the Council of Ministers, but is generally considered