sentences:  On 19 May 2007, 45 people met in San Sebastián to discuss the creation of a new political party opposing both major parties (the People's Party and the Spanish Socialist Workers' Party) at the national level.Most present were Basques, many of whom had long experience in political, union and civic organizations with left-wing, liberal and activist backgrounds.After the meeting, to create a broad-based social and political project they formed the Plataforma Pro organization.