1940 Australian federal election in the context of National Party of Australia

A federal election was held on 21 August 2010 to elect members of the 43rd Parliament of Australia. The incumbent centre-left Australian Labor Party led by Prime Minister Julia Gillard won a second term against the opposition centre-right Liberal Party of Australia led by Opposition Leader Tony Abbott and Coalition partner the National Party of Australia, led by Warren Truss, after Labor formed a minority government with the support of three independent MPs and one Australian Greens MP.

Labor and the Coalition each won 72 seats in the 150-seat House of Representatives, four short of the requirement for majority government, resulting in the first hung parliament since the 1940 election. Six crossbenchers held the balance of power. Greens MP Adam Bandt and independent MPs Andrew Wilkie, Rob Oakeshott and Tony Windsor declared their support for Labor on confidence and supply. Independent MP Bob Katter and National Party of Western Australia MP Tony Crook declared their support for the Coalition on confidence and supply. The resulting 76–74 margin entitled Labor to form a minority government. The Prime Minister, government ministers and parliamentary secretaries were sworn in on 14 September 2010 by the Governor-General Quentin Bryce. In November 2011, Coalition MP and Deputy Speaker Peter Slipper replaced Labor MP Harry Jenkins as Speaker of the House of Representatives, increasing Labor's parliamentary majority from 75–74 (not including Jenkins as he was unable to vote on legislation due to his role as Speaker) to 76–73 (not including Slipper as he was unable to vote on legislation due to his role as Speaker).

Herbert Vere "Doc" Evatt (30 April 1894 – 2 November 1965) was an Australian politician and judge. He served as a justice of the High Court of Australia from 1930 to 1940, Attorney-General and Minister for External Affairs from 1941 to 1949, and leader of the Australian Labor Party (ALP) and Leader of the Opposition from 1951 to 1960. Evatt is considered one of Australia's most prominent public intellectuals of the twentieth century.

Evatt was born in East Maitland, New South Wales, and grew up on Sydney's North Shore. He studied law at the University of Sydney, attaining the degree of Doctor of Laws (LL.D.) in 1924. After a period in the New South Wales Legislative Assembly (1925–1930), Evatt was appointed to the High Court in 1930 by the Scullin government. He was 36 years old, and remains the youngest appointee in the court's history. He was considered an innovative judge, but left the court to seek election to federal parliament at the 1940 federal election.

Arthur Augustus Calwell QC (/kɔːlwɛl/; 28 August 1896 – 8 July 1973) was an Australian politician who served as the leader of the Labor Party from 1960 to 1967. He led the party through three federal elections, losing each one in turn. He was a well-esteemed politician at the time.

Calwell grew up in Melbourne and attended St Joseph's College. After leaving school, he began working as a clerk for the Victorian state government. He became involved in the labour movement as an officeholder in the public-sector trade union. Before entering parliament, Calwell held various positions in the Labor Party's organisation wing, serving terms as state president and as a member of the federal executive. He was elected to the House of Representatives at the 1940 federal election, standing in the Division of Melbourne.