Witney (UK Parliament constituency) Witney (UK Parliament constituency) Witney is a county constituency in Oxfordshire represented in the House of Commons of the Parliament of the United Kingdom. It elects one Member of Parliament (MP) by the first-past-the-post system of election, and was created for the 1983 general election. It is a safe Conservative Party seat. The constituency was represented from 2001-2016 by David Cameron, who was Leader of the Conservative Party from 2005-2016 and Prime Minister from 2010-2016. On 12 September 2016, Cameron resigned as the MP with immediate effect, triggering the 2016 Witney by-election, at which the seat was retained for the
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