 He was also an organizer and the senior representative for Chile at the Annual Meeting of APEC held in Chile in 2004, in addition to being one of the architects of the free trade agreements that Chile signed with the United States (United States-Chile Free Trade Agreement) and the European Union (European Union Association Agreement) as the head of the Foreign Ministry's Department of Trade Policy.He is a member of the Party for Democracy (PPD).Between March 2016 and March 2017 he was President of the Senate of Chile.