David Steel MP, he was responsible for introducing, as a Private Member's Bill, the Abortion Act 1967, and has argued for greater liberalisation of this legislation in recent years (see Abortion in the United Kingdom). He also became the Liberal Party's spokesman on employment, and in 1970 its Chief Whip. In 1976, after the downfall of Jeremy Thorpe, and a short period in which Jo Grimond acted as caretaker leader, he won the Liberal leadership by a wide margin over John Pardoe. At only 38 years old, he was one of the youngest party leaders in British history. In March 1977, he
Leader of the Labour Party (UK) From oldest to youngest: Leader of the Labour Party (UK) The Leader of the Labour Party is the most senior political figure within the Labour Party in the United Kingdom. Since 12 September 2015, the office has been held by Jeremy Corbyn; who has represented the constituency of Islington North since 1983. Harriet Harman was the Deputy Leader of the Labour Party and also Acting Leader since the resignation of Ed Miliband on 8 May 2015 following Labour's defeat at the 2015 general election. On 12 September 2015, she was replaced by Jeremy Corbyn, who won the Labour leadership election.