Labour has won the Corby by-election caused by the resignation of the former Conservative MP Louise Mensch. The Lib Dems lost their deposit. Labour have also held seats of Manchester Central and Cardiff South in by-elections.
It was the first time in 15 years that Labour has won a House of Commons seat from the Tories in a by-election, and victorious candidate Andy Sawford suggested it had set the party on track for a successful general election in 2015, declaring: "The road to Downing Street runs through Corby."
Ed Miliband claimed that Middle England was turning its back on David Cameron, after Labour won the Corby by-election on a 12.7% swing.
Labour today held Manchester Central and Cardiff South and Penarth constituency seats in their respective by-elections.