Tony Blair opposed the PR system, and many members of the Shadow Cabinet were worried about concessions being made towards the Lib Dems. In the event, vitually every opinion poll since late-1992 put Labour ahead with enough support to form an overall majority. Blair became the Prime Minister of the United Kingdom on 2 May 1997, serving concurrently as First Lord of the Treasury, Minister for the Civil Service and Leader of the Labour Party. Aged 43, Blair became the youngest person to become Prime Minister since Lord Liverpool became Prime Minister aged 42 in 1812. With victories in 1997, 2001, and
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