The party was founded in March 2014 in the aftermath of the 15-M Movement protests against inequality and corruption by political scientist Pablo Iglesias. Podemos is a left wing populist party, which seeks to address the problems of inequality, unemployment and economic malaise that followed in the wake of the European debt crisis. Podemos has called for a renegotiation of austerity measures and seeks to curtail the Treaty of Lisbon. The term “populist” is sometimes used by political opponents to refer to the party in a pejorative way. Podemos is the second largest political party in Spain by number of members after the People’s Party (PP); it became the third largest party within the first 20 days it allowed membership, with 100,000 signing up in that period, and its membership grew to more than 389,000.