Witney (UK Parliament constituency) of St Helens South instead, following the practice of Alan Howarth in 1997. At the 2001 general election, David Cameron was elected as MP for Witney. Cameron was re-elected to a fourth term as MP for the constituency at the 2015 general election with a majority of 25,155, the highest in his political career; on that occasion his Conservative Party won a surprise overall majority in the House of Commons, taking 330 seats to the opposition Labour Party's 232. However, on 24 June 2016, Cameron announced that he would resign as Prime Minister by that October due to the outcome
Premiership of David Cameron leaving Cameron in charge until then whilst a leadership election took place within the Conservative Party. However, following the withdrawal of the only remaining candidate, Andrea Leadsom, Theresa May was left unopposed, annulling the leadership contest. Cameron subsequently resigned with May's premiership taking effect Wednesday 13 July 2016. David Cameron called the United Kingdom European Union membership referendum, 2016, which resulted in the UK voting to leave the European Union. In response, his successor as prime minister, Theresa May, has triggered the Article 50 of the Lisbon Treaty, paving way for the UK to leave the European Union. As he