A by-election was held for the

New South Wales Legislative Assembly The New South Wales Legislative Assembly is the lower of the two houses of the Parliament of New South Wales, an Australian state. The upper house is the New South Wales Legislative Council. Both the Assembly and Council sit at Parliament Ho ...

seat of Penrith on 19 June 2010. The by-election was triggered by the resignation of sitting

Labor Labour or labor may refer to: * Childbirth, the delivery of a baby * Labour (human activity), or work ** Manual labour, physical work ** Wage labour, a socioeconomic relationship between a worker and an employer ** Organized labour and the labour ...

member and former Parliamentary Secretary for Education and Training Karyn Paluzzano, who had lied to an Independent Commission Against Corruption (ICAC) inquiry over her actions, such as signing false staff payslips and rorting her electoral mail allowance. Paluzzano resigned from Cabinet after she admitted lying to ICAC. Paluzzano resigned from

Parliament In modern politics, and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: Representation (politics), representing the Election#Suffrage, electorate, making laws, and overseeing ...

on 7 May 2010, hours after being suspended from the Labor Party. Penrith had been in Labor hands for all but one term since its creation in 1974. Labor held it on a majority of 9.1%—a margin that would be considered on the stronger side of fairly safe under normal circumstances (any seat with a two-party margin between 6-10% is considered fairly safe on paper). However, the by-election came at a bad time for the government. In addition to the scandal surrounding Paluzzano, Labor was only polling at 39% support, a marked drop from the 2007 election. While Premier

Kristina Keneally Kristina Marie Kerscher Keneally (born 19 December 1968) is an American-born Australian politician who was a Labor Senator for New South Wales from February 2018 until April 2022, when she resigned to unsuccessfully contest the House of Represe ...

had invested considerable time into rehabilitating Labor's image since ousting

Nathan Rees Nathan Rees () (born 12 February 1968) is a former Australian politician who served as the 41st Premier of New South Wales and parliamentary leader of the New South Wales division of the Labor Party from September 2008 to December 2009. Rees wa ...

in a caucus coup, it was not enough to improve her party's standing in the polls. The by-election was won by

Liberal Liberal or liberalism may refer to: Politics * a supporter of liberalism ** Liberalism by country * an adherent of a Liberal Party * Liberalism (international relations) * Sexually liberal feminism * Social liberalism Arts, entertainment and m ...

candidate

Stuart Ayres Stuart Laurence Ayres (born 24 November 1980) is an Australian politician. He has been a member of the New South Wales Legislative Assembly since 19 June 2010, representing the electorate of Penrith as a member of the Liberal Party. He also se ...

with a 25.7-point two-party swing. The size of this swing, at the time, was the biggest against a sitting NSW government on record; previously, the highest swing was the 23.1 per cent swing achieved by the Liberal Party in the 2008 Ryde by-election. Additionally, this result marked the first time that the Liberal Party achieved a primary vote majority in Penrith, with the Labor primary vote having halved from the last election. Indeed, on paper it turned Penrith from a fairly safe Labor seat into a safe Liberal seat in one stroke. The loss of Penrith presaged Labor's massive defeat at the 2011 state election nine months later.

Candidates

Candidates are listed in ballot paper order.

Results

References

{{DEFAULTSORT:Penrith 2010 2010 elections in Australia New South Wales state by-elections 2010s in New South Wales