born 1943
John McDonnell is a British politician and a member of the Labour Party, serving as the Member of Parliament (MP) for Hayes and Harlington since 1997. He is known for his role as the Shadow Chancellor of the Exchequer under Jeremy Corbyn's leadership from 2015 to 2019, where he advocated for progressive economic policies and increased public spending. McDonnell has been a prominent figure in British politics, particularly in discussions around economic justice and workers' rights.