2007 Sedgefield by-election with a majority reduced by over 11,000. The Liberal Democrats overtook the Conservatives for second place, with an 11% swing. The British National Party and independent local campaigner Paul Gittins both retained their deposits. 2007 Sedgefield by-election The Sedgefield by-election, 2007 was a by-election held on 19 July 2007 for the British House of Commons constituency of Sedgefield in County Durham. The Ealing Southall by-election was also held on 19 July. The by-election was triggered when Tony Blair, the Labour Party Member of Parliament (MP) for Sedgefield and former Prime Minister, "resigned" to become envoy for the international diplomatic Quartet
Tony Blair and, more controversially, the 2003 invasion of Iraq. Blair has faced criticism for his role in the invasion of Iraq, including calls for having him tried for war crimes and waging a war of aggression; in 2016, the Iraq Inquiry criticised his actions and described the invasion as unjustified and unnecessary. Blair was succeeded as Leader of the Labour Party and as Prime Minister by Gordon Brown in June 2007. On the day that Blair resigned as Prime Minister, he was appointed the official Special Envoy of the Quartet on the Middle East, an office which he held until May