Premiership of Tony Blair

Premiership of Tony Blair 2 May 1997 – 27 June 2007
Monarch	Elizabeth II
Cabinet	First Blair ministry Second Blair ministry Third Blair ministry
Party	Labour
Election	1997 2001 2005
Seat	10 Downing Street
← John Major Gordon Brown →
Coat of arms of HM Government

This article is part of a series about Tony Blair
Electoral history MP for Sedgefield Beaconsfield by-election Leader of the Opposition Leadership election Brown Deal Shadow Cabinet Prime Minister of the United Kingdom Premiership Policies Blairism New Labour Third Way Appointments "Tony's Cronies" "Blair Babes" First ministry and term Ministry 1997 election 1997 budget Good Friday Agreement peace process Handover of Hong Kong Death of Diana, Princess of Wales People's princess Post Office scandal Military intervention in Sierra Leone Second ministry and term Ministry 2001 re-election 9/11 War on terror War in Afghanistan Death and funeral of Queen Elizabeth The Queen Mother 2003 invasion of Iraq Iraq and weapons of mass destruction Saddam–al-Qaeda conspiracy theory Bush memo Downing Street memo February Dossier September Dossier Ultimatum to Iraq Iraq War Third ministry and term Ministry 2005 re-election Cabinet reshuffle Cash for Honours Leadership succession London bombings Respect agenda Post–Prime Minister A Journey Associates Faith Foundation Iraq Inquiry Quartet on the Middle East Sports Foundation Institute for Global Change
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Tony Blair's term as the prime minister of the United Kingdom began on 2 May 1997 when he accepted an invitation of Queen Elizabeth II to form a government, succeeding John Major of the Conservative Party, and ended on 27 June 2007 upon his resignation. While serving as prime minister, Blair also served as the first lord of the treasury, minister for the civil service and leader of the Labour Party. He and Gordon Brown both extensively used the New Labour branding while in office, which was presented as the brand of a newly reformed party that had altered Clause IV and endorsed market economics. Blair is the second longest serving prime minister in modern history after Margaret Thatcher, and is the longest serving Labour politician to have held the office.

Blair was appointed prime minister after Labour won the 1997 general election, its largest landslide victory in history. During his first term, Blair enacted constitutional reforms, and significantly increased public spending on healthcare and education, while also introducing controversial market-based reforms in these areas. In addition, Blair saw the introduction of a minimum wage, tuition fees for higher education, constitutional reform such as devolution in Scotland and Wales, an extensive expansion of LGBT+ rights and significant progress in the Northern Ireland peace process with the passing of the landmark Good Friday Agreement. On foreign policy, Blair oversaw British interventions in Kosovo in 1999 and Sierra Leone in 2000, which were generally perceived as successful.

Blair was re-elected in a second landslide in 2001. Three months into his second term, Blair's premiership was shaped by the September 11 terrorist attacks in the United States, resulting in the start of the war on terror. Blair supported the foreign policy of the George W. Bush administration by ensuring that the British Armed Forces participated in the War in Afghanistan, to overthrow the Taliban, destroy al-Qaeda, and capture Osama bin Laden. In 2003, Blair supported the 2003 invasion of Iraq and had the British Armed Forces participate in the Iraq War, claiming that Saddam Hussein's regime possessed weapons of mass destruction (WMDs), which were never found there. The invasion of Iraq was particularly controversial, as it attracted widespread public opposition and 139 of Blair's own MPs opposed it. As a result, he faced criticism over the policy itself and the circumstances of the decision. The Iraq Inquiry report of 2016 gave a damning assessment of Blair's role in the Iraq War. As the casualties of the Iraq War mounted, Blair was accused of misleading Parliament, and his popularity dropped dramatically.

Blair announced in 2004 that he would not be fighting a fourth general election as leader. Blair was re-elected for a third term with another landslide in 2005, but with a substantially reduced majority, with Blair pledging to serve another full term. Two months into his third term, Blair and the Labour Party had a surge in popularity at the time of terrorist bombings of London of July 2005, but by the Spring of 2006 were facing significant difficulties, most notably with scandals over failures by the Home Office to deport illegal immigrants. Amid the Cash-for-Honours scandal, Blair was interviewed three times as prime minister, though only as a witness and not under caution. In 2006, following speculation over the timetable for his departure and calls by Labour MPs for him to resign, Blair announced he would resign within a year. Blair resigned as Labour leader on 24 June 2007 and as prime minister on 27 June 2007, and was succeeded by Gordon Brown, his chancellor.

After leaving office, Blair gave up his seat and was appointed Special Envoy of the Quartet on the Middle East, a diplomatic post which he held until 2015. He has been the executive chairman of the Tony Blair Institute for Global Change since 2016, and has made occasional political interventions. In 2009, Blair was awarded the Presidential Medal of Freedom by George W. Bush. He was knighted by Queen Elizabeth II in 2021. At various points in his premiership, Blair was among both the most popular and most unpopular figures in UK history. As prime minister, he achieved the highest recorded approval ratings during his first few years in office, but also one of the lowest such ratings during and after the Iraq War. Blair had notable electoral successes and reforms, and he is usually rated as above average in historical rankings and public opinion of British prime ministers. With victories in 1997, 2001, and 2005, Blair remains the Labour Party's longest-serving prime minister, and the first and only person to date to lead the party to three consecutive general election victories.