The Rt Hon. Sir Oliver Letwin took his first degree in History (for which he received a double first) at Trinity College, Cambridge, where he also completed his PhD in Philosophy. Following fellowships at Princeton and Cambridge, he has been a civil servant (where he served in Margaret Thatcher’s Policy Unit); an investment banker; a Member of Parliament; and a cabinet minister (where he served first as Minister for Government Policy and then as Chancellor of the Duchy of Lancaster). He became a privy councillor in 2002 and was knighted in 2016.