The party formed early in 1932 from the union of Partido Republicano Puro and Partido Alianza Puertorriqueña, after the dissolution of Partido Alianza Puertorriqueña and the reconciliation between the Republicanos Puro and the Republicanos who had left Partido Republicano in 1928. However, before the 1932 elections, Partido Unión Republicana joined forces with the Socialist Party to form the Coalition. The pact between these two parties (Unión Republicana and Socialista) was renewed before the 1936 elections to continue in force during that electoral cycle.[citation needed]
^Bolivar Pagan. Historia de los Partidos Políticos Puertorriqueños (1898-1956). San Juan, Puerto Rico: Litografía Real Hermanos, Inc. 1959. Tomo II. p. 15.