Boris Johnson was a member of the Conservative Party in the UK, often associated with center-right political positions. He was known for his support of free market principles, deregulation, and a strong national defense. As Prime Minister, he advocated for Brexit and emphasized a "Global Britain" approach. During this 2016 Brexit campaign he was criticized for his role in promoting a controversial claim that leaving the European Union would allow the UK to redirect £350 million per week to the National Health Service (NHS). This claim, often referred to as the "£350 million on the bus," was widely criticized as misleading and was a source of significant controversy.