 This identity would be based on "broadly inclusive concept[s] of citizenship" and "a sense of identification with a political system that delivered freedom and equality to every citizen" as established in the 1978 constitution.Although the concept of constitutional patriotism has been used by both the Spanish Socialist Workers' Party (Partido Socialista Obrero Español [PSOE]) and the People's Party (Partido Popular [PP]), it is most predominant among the Socialist left.During the last 2 decades of the 20th century, 'patriotism' replaced the term 'nationalism,' as the latter was used only among 'substate nationalists,' who meant the term in an ethnically, rather than civically, based sense.