Papandreou achieved a landslide and PASOK formed the first socialist government in the history of Greece (in 1963 Centrists had formed a government under the leadership of George Papandreou, Andreas' father, but their party, Center Union, was not a socialist party but a centrist, social-liberal one).

This was the high point of Greek euroscepticism, coming just months after the country's accession to the European Communities.

[3] Papandreou's new government introduced several interesting reforms in the wake of its victory (legalization of civil wedding, new family law, nationalization of certain private companies, etc.).

Georgios Rallis was forced to resign after the defeat and he was succeeded by Evangelos Averoff, former minister under Karamanlis governments.

Papandreou was calling Mitsotakis "a defector, an apostate", because in 1965 he defected from the ruling Center Union and participated in a new government pleasing to Constantine II, who had just accepted George Papandreou's resignation after a serious disagreement between the King and the prime minister.