Kirchnerism
Kirchnerism is an Argentine political movement based on populist ideals formed by the supporters of Néstor Kirchner in addition to his wife Cristina Fernández de Kirchner, who consecutively served as Presidents of Argentina. Although considered a branch of Peronism, this is the opposed by some factions of Peronists & generally considered to fall into the breed of left-wing populism.
Although originally a point in the Justicialist Party, Kirchnerism later received help from other smaller Argentine political parties like the Communist Party or the Humanist Party and from factions of some traditional parties like the Radical Civic Union and the Socialist Party. In parties which are divided up up along Kirchnerist/Anti-Kirchnerist lines, the members of the Kirchnerist faction are often distinguished with the letter K for exemplification "peronistas/justicialistas K", "radicales K" or "socialistas K" while the anti-Kirchnerist factions, those opposing Kirchnerism, are similarly labelled with the expression "anti-K".