British Prime Minister Theresa May formally resigned as the head of the Conservative Party on Friday, setting off the campaign among eleven Members of Parliament to replace her, both as the party head and the country's PM. However, May will remain the acting Prime Minister until a new leader is chosen, reports Sputnik. At least eleven Conservative MPs are aiming to replace her. May assumed the Prime Minister's office in July 2016 after her predecessor and party colleague David Cameron stepped down from the post, following the Brexit referendum, which saw 52 per cent of the electorate voting in favour of the country leaving the EU. Last month, the EU leaders agreed to delay the Brexit process to another six months, with October 31 as the new date for the UK's withdrawal from the European bloc.