Boris Johnson

Johnson was elected as the Conservative Mayor of London, defeating incumbent Ken Livingstone. He served two terms until 2016, overseeing the 2012 Olympic Games and introducing the New Routemaster bus.

Prime Minister Theresa May appointed Johnson as Foreign Secretary, a role he held until July 2018. His tenure was marked by controversial statements and the resignation of his aide over a diplomatic incident with Iran.

Johnson won the Conservative Party leadership election, succeeding Theresa May as Prime Minister. He promised to deliver Brexit by October 31, 2019, and formed a government with a mandate to leave the EU.

Johnson oversaw the UK's formal departure from the European Union on January 31, 2020, following the ratification of the Withdrawal Agreement. This ended 47 years of EU membership and initiated a transition period.

Johnson led the UK government's response to the COVID-19 pandemic, including national lockdowns and a vaccination program. He was hospitalized with COVID-19 in April 2020. The response faced criticism over timing and deaths.

Johnson announced his resignation as Prime Minister following a series of ministerial resignations and the Partygate scandal. He remained in office until a successor was chosen, ending his tenure in September 2022.