Michel Jean Barnier is a French politician who served as Prime Minister of France from September to December 2024. A member of a series of Gaullist parties, Barnier has served in several French cabinet positions under the governments from Édouard Balladur to François Fillon from 1993 to 2009. At the European Union level, Barnier was European Commissioner for Internal Market and Services from 2010 to 2014 and vice-president of the European People's Party from 2010 to 2015. From October 2016 to 2021, he was the EU's chief negotiator on Britain's exit from the European Union.