Robert James Lee "Bob" Hawke AC GCL is a former Australian politician and trade unionist who was the 23rd Prime Minister of Australia and the parliamentary leader of the Australian Labor Party from 1983 to 1991. After a decade as President of the Australian Council of Trade Unions, he entered the House of Representatives as the Labor MP for Wills at the 1980 federal election. Three years later he led Labor to a landslide victory, and was sworn in as Prime Minister. In total, he led Labor to victory at four federal elections in 1983, 1984, 1987 and 1990, thus making him the most successful Labor leader in history. Hawke was eventually replaced by Paul Keating in 1991. He is, to date, Labor's longest-serving Prime Minister and Australia's third-longest-serving Prime Minister.