Was Minister of Territorial Policy and Public Function and later Minister of Culture and Sports in the Sánchez government, a position he held until 11 November 2023. On 5 December 2023, he resigned and the government appointed him Ambassador of Spain, Permanent Delegate to UNESCO. Miquel has also been councillor for the Cornellà City Council (1987-1991), director of the analysis department and deputy director of the Cabinet of the Presidency of the Government of Spain (1987-1991), member of

congress for Barcelona and member of the parliament of Catalonia. From 2014 to 2020, he was president of the Socialist Group. His last responsibility was that of deputy first secretary and spokesman of the party. He has also been a member of the Federal Executive Commission of the PSOE. He returned to the PSC Executive Commission in 2014 as the first secretary. He was elected president of the PSC at the extraordinary congress of the party held in Barcelona in December 2021. In July 2022, he was appointed secretary of democratic memory and secularism of the Federal Executive Commission of the PSOE.