Boris Johnson served as Prime Minister from 24th July 2019 to 6th September 2022. He was previously Foreign Secretary, Mayor of London, Conservative MP for Uxbridge and South Ruislip and Conservative MP for Henley. In addition to his work in politics, Mr. Johnson is an award-winning journalist, writer and editor. He is the author of almost a dozen books, including the globally bestselling historical biography of Winston Churchill, The Churchill Factor.