 When the government of Primo de Rivera banned separatist movements, the party became clandestine and Francesc Macià went into exile.Nonetheless, Estat Català was one of the parties promoting the "San Sebastian pact" with Basque nationalism, Galician nationalists and Spanish republicans they agreed to push for a democratic process in the Spanish monarchy.During a conference held on the 17 and 19 of March 1931 at "Cros" street in the "Sants" district of Barcelona, Estat Català joined the Partit Republicà Català and the political group L'Opinió to form Esquerra Republicana de Catalunya.