After the civil war Gamero was taken under the wing of Ramón Serrano Súñer and became his protégé. In 1939 he became the youngest minister in Franco's post-war government, serving as Minister without Portfolio and vice-general secretary of the Movement from 1939. He was even acting General Secretary for a spell in 1940. However Gamero was no Francisco Franco loyalist and his ambitions for Serrano Súñer led to problems for him. He consulted in January 1941 with Hans Lazar, the press secretary of the German Embassy and told him that a Serrano Súñer government would commit to the Axis powers and thus asked for him to arrange for the Nazis to publicly back his mentor. Nevertheless, Gamero was a committed Catholic, who beneath a pro-German exterior was alienated by what he saw as the godless nature of the Nazi vision, and offered discreet support to British efforts to keep Spain out of the war through contacts at the British embassy in Madrid. After growing differences with Franco, Gamero became the first minister to offer his resignation in public in March 1941. However, Franco did not accept the resignation until May as part of a cabinet reshuffle. In July 1943, Gamero, along with various members of the Cortes and several senior army officers, called upon Franco to prepare for the post-Second World War era by restoring the monarchy under Don Juan. Fearing the growing influence of Nazi agents Franco acted and in May 1941 Gamero was deprived of his position, along with a number of pro-Nazis such as Dionisio Ridruejo and Sancho Dávila y Fernández de Celis. Increasingly becoming noted for cronyism and financial corruption, Gamero was finally removed from his seat on the Council of State in 1943 after publicly calling for the restoration of the monarchy. He remained a member of the Consejo de Estado, the Council of State, having gained admission through academic merit as a jurist.
Later years
Deprived of his government office Gamero was part of a 1944 monarchist plot to overthrow Franco. whilst he was also closely involved in the machinations of monarchist General Alfredo Kindelán. By then Gamero was convinced the future of Spain lay in a constitutional monarchy. From 1946 onwards he worked on ideas for a new constitution and became part of the council of wise man advising Don Juan living in exile at Estoril in Portugal. Devoting himself to business, he was on the board or helping to run a number of major Spanish companies covering banking, and shipbuilding, and latterly became a founding shareholder in El Pais, the new newspaper that played a fundamental role in the transition to democracy.
