Brian Mulroney Thatcher were the first foreign dignitaries to eulogize at a funeral for an American president. Two years later, at the request of Prime Minister Stephen Harper, Mulroney traveled to Washington, DC along with Michael Wilson, Canada's ambassador to the United States, as Canada's representatives at the state funeral of former president Gerald Ford. In February 2005, as part of a physical examination, a CT scan revealed two small lumps in one of Mulroney's lungs. In his youth, Mulroney had been a heavy smoker. His doctors performed a biopsy, which ruled out cancer. (His surgery is sometimes cited as an example
Prime Minister of Australia time to time Prime Ministers are required to leave the country on government business and a deputy acts in their place during that time. In the days before jet aircraft, such absences could be for extended periods. For example, William Watt was acting Prime Minister for 16 months, from April 1918 until August 1919, when Prime Minister Billy Hughes was away at the Paris Peace Conference, and Senator George Pearce was acting Prime Minister for more than seven months in 1916. An acting Prime Minister is also appointed when the prime minister takes leave. The Deputy Prime Minister most commonly