Presidency of Cristina Fernández de Kirchner and became president after his death. The transition from Néstor Kirchner to Cristina Kirchner was also the first time when a democratic head of state was replaced by his spouse, without involving the death of any of them. Néstor Kirchner stayed active in politics despite not being the president, and worked alongside Cristina Kirchner. The press developed the term ""presidential marriage"" to make reference to both of them at once. Some political analysts compared this type of government with a diarchy. During the first days of Fernández's presidency, Argentina's relations with the United States deteriorated as a result of allegations
Presidency of Cristina Fernández de Kirchner be trying to kill her, and later that there could be a conspiracy against her led by the US; Elisa Carrió dismissed such threats as mere conspiracy theories. In her speech, she accused the "vulture funds" of destabilizing the economy of the countries and called them "economic terrorists". In March 2010, Fernández de Kirchner made a historic trip to Peru to make amends, a country with whom relations had been adversely affected following the Carlos Menem administration's illegal sale of weapons to Ecuador in the 1990s. On 19 April, she was invited to the bicentenary of the independence celebrations in