集中と統一
Nadal became the Leader of the Opposition in the Parliament of Catalonia in December 2012, upon constitution of the 9th Legislature, with Convergence and Union forming a minority government and the Socialists' Party of Catalonia as the opposition party with the most seats. On September 3, 2012, the executive committee of the Socialists' Party of Catalonia decided to replace the party's leadership in Parliament, including Nadal. He was also opposition leader from 1995 to 1999.