He remained active also as a Catholic politician, since the early 1920s heading the Biscay section of Acción Católica;the post he retained until 1933, Juan José Alzugaray Aguirre, Vascos relevantes del siglo XX, Donostia 2004, , p. 71 he later took part in the first national congress and delivered an address.in 1930; Santiago Martínez Sánchez, El Cardenal Pedro Segura y Sáenz (1880-1957) [PhD thesis Universidad de Navarra], Pamplona 2002, p. 168 In 1929 he worked to launch a new Catholic political grouping, but the initiative came to naught as it was greeted with at best lukewarm reception from the primate Segura.Martínez Sánchez 2002, p. 129 During the Dictablanda period Bilbao approached the orphaned monarchist primoderiveristas from Unión Monárquica Nacional, speaking at their public meetings.Robles, Robles Muñoz 1997, p. 415
