Argentine president Mauricio Macri attended an event at a dissident union headquarters in the City of Buenos Aires where he marked the Labour Day with unionized workers of the food sector, and blasted the previous administration for hiding unemployment with public jobs.
Brazil's populist president Dilma Rousseff vowed at a protest on Sunday, International Labour Day, that she would go down fighting ahead of what could be her final full week in power before impeachment.
President Evo Morales expelled a US development agency from Bolivia, marking the latest confrontation between Washington and a bloc of populist governments in Latin America.