Mario Bravo

Born in La Cocha, Tucumán Province, in 1882, Bravo enrolled at the University of Buenos Aires, and earned a Law Degree in 1905 after submitting his thesis on labor legislation.

A member of a minority party in a Congress dominated by the rivalry between the centrist UCR and conservatives, Bravo introduced numerous pieces of legislation, particularly bills advancing labor law reforms and women's rights.

The Socialists entered a crisis ahead of the 1928 elections, when, during their 1927 convention, their party standard-bearer, Senator Juan B. Justo, selected former University of La Plata Director José Nicolás Matienzo as his running mate.

Following the 1930 overthrow of President Hipólito Yrigoyen, Bravo negotiated a Civil Alliance between the Socialist Party and the PDP of the more conservative reformist, Lisandro de la Torre, in 1931.

[3] Returned to the Senate by voters in 1932 (following Congress' suspension by a coup d'état against President Yrigoyen in 1930), Bravo became known for his work on arms control legislation.