[1] López Rega, formally Minister of Social Policy, quickly parlayed his portfolio control over nearly 30 percent of the national budget into a well-funded paramilitary force, the Argentine Anticommunist Alliance (Triple A).

This move created both the need for new elections and the chance to remove a number of Cámpora's leftist advisers; it also left the nation's highest office to the President of the Argentine Chamber of Deputies (lower house), Raúl Lastiri, who was, despite being a year older than López Rega, the powerful Social Policy Minister's son-in-law.

The cautious Lastiri continued Cámpora's populist socio-economic policies; inheriting a growing threat from an increasingly armed Peronist Youth and the newly-active Trotskyist People's Revolutionary Army (ERP), which, in only three months, attacked a military installation and murdered a number of military figures, he replaced Interior Minister Righi and called elections for September 23.

[2] Increasing violence led many in Argentina, including much of the armed forces to conclude that only Perón commanded enough respect to persuade extremists away from hostilities.

Opposed to López Rega's suggestion at first, the aging Perón (who would, in theory, serve until May 1977) set aside strong personal doubts as to his wife's readiness for office and agreed.