A by-election for the House of Commons constituency of Eastleigh in Hampshire was held on 28 February 2013.

Christopher Murray Paul Huhne is a British energy and climate change consultant, and former journalist, business economist and politician who was the Liberal Democrat Member of Parliament for Eastleigh from 2005 to 2013 and the Secretary of State for Energy and Climate Change from 2010 to 2012. He is currently chair of the UK green gas association – the Anaerobic Digestion and Bioresources Association – and senior adviser to the World Biogas Association. He also advises companies on his particular interest in renewable technologies that can provide back up for intermittent energy sources like wind and solar.