Néstor Kirchner (2003-2007)
Cristina Fernández de Kirchner (2007-2015)
Néstor Kirchner served as the President of Argentina from 2003 until 2007. He was succeeded by his wife, Cristina Fernández de Kirchner, who served as the President from 2007 until 2015.

During Néstor Kirchner's presidency, he implemented various economic and social reforms aimed at recovering Argentina from its economic crisis. He focused on reducing poverty, increasing employment, and strengthening the country's industrial sector. Kirchner's policies were known for their interventionist approach and emphasis on social welfare.

Cristina Fernández de Kirchner, as the first female President of Argentina, continued many of her husband's policies while also introducing some of her own. She implemented measures to promote social inclusion and economic growth, such as increasing public spending, nationalizing key industries, and expanding social welfare programs. However, her presidency was also marked by controversy, including allegations of corruption and conflicts with various sectors of society.

References:
1. Néstor Kirchner - https://en.wikipedia.org/wiki/N%C3%A9stor_Kirchner
2. Cristina Fernández de Kirchner - https://en.wikipedia.org/wiki/Cristina_Fern%C3%A1ndez_de_Kirchner