Theresa Mary, Lady May (née Brasier; born 1 October 1956) is a British politician and the Prime Minister of the United Kingdom from 2016 to 2019.
She was born in Eastbourne, Sussex, and grew up in Oxfordshire. She is the Member of Parliament (MP) for the constituency of Maidenhead in the House of Commons. She was the Home Secretary in the David Cameron government. In 2018, she was elected as Commonwealth Chair-in-Office.
On 12 December 2018, 48 Conservative MPs had submitted letters of no confidence to the Chairman of the 1922 Committee Sir Graham Brady, triggering a vote of no confidence. Despite this, May won the confidence vote after 200 MPs vowed support to her leadership. On 15 January 2019 after her Brexit proposal failed in the House of Commons by a 432 to 202 vote, Opposition Leader Jeremy Corbyn filled a motion of no confidence in her ministry, which failed in a 325 to 306 vote.
In March 2019, May said she would resign as Prime Minister if Parliament passed her Brexit deal, to make way for a new leader in the second phase of Brexit.
On 24 May 2019, she announced that her resignation as party leader would take effect on 7 June and she would leave her position as Prime Minister when her replacement is selected. She was replaced by Boris Johnson.