Harriet Ruth Harman (born 30 July 1950) is a British solicitor and Labour politician serving as a Member of Parliament (MP) since 1982, first for Peckham and then its successor constituency of Camberwell and Peckham since 1997.
Harman holds the record as the longest-ever continuously serving female MP in the House of Commons.
On 13 June 2017, she was dubbed "Mother of the House" by the then Prime Minister Theresa May.She has served in various Cabinet and Shadow Cabinet positions.
She served as a Shadow Social Services minister (from 1984) and as a Shadow Health minister (from 1987), Shadow Chief Secretary to the Treasury (1992–1994) and then, under Tony Blair, as Shadow Employment Secretary (1994–1995), Shadow Health Secretary (1995–1996) and Shadow Social Security Secretary (1996–1997).
Following the 1997 general election victory, she was appointed Secretary of State for Social Security and the first ever Minister for Women, serving until 1998; when she left the Cabinet.
In 2001, she was appointed Solicitor General for England and Wales, serving until 2005 when she became Minister of State for Constitutional Affairs.
Harman ran in the deputy leadership election and defeated five other candidates, ultimately defeating Secretary of State for Health, Alan Johnson, by 50.43% to 49.56%.
Gordon Brown, who was elected as party leader, appointed Harman Leader of the House of Commons, Lord Privy Seal, Minister for Women and Equality and Chairman of the Labour Party, holding these positions until the 2010 general election, although she was not appointed Deputy Prime Minister.
Upon defeat, Brown resigned as party leader and Harman, as Deputy Leader of the Labour Party, became Acting Leader of the Labour Party and Leader of the Opposition until Ed Miliband was elected leader.
She subsequently served as Shadow Deputy Prime Minister, combining the position with that of Shadow Secretary of State for International Development (2010–2011) and then Shadow Secretary of State for Culture, Media and Sport (2011–2015).
After Labour's defeat at the 2015 general election, Miliband resigned as Leader of the Labour Party and Harman once again became Acting Leader and Leader of the Opposition.
She announced that she would also resign as Deputy Leader, prompting a concurrent deputy leadership election.