The primary agenda item is the EU's recent demand for compliance with the Paris Agreement on climate change as a condition for ratifying the Mercosur-EU agreement.
At the Mercosur summit in Puerto Iguazú, President Alberto Fernández shows off support for Economy Minister Sergio Massa, who secures a host of invitations from foreign leaders.
Uruguay steps up criticism of Mercosur at key summit, saying internal trade barriers are hurting exports to Argentina while the bloc's regulations prevent it from signing an agreement with China.
Paraguayan Congress has opened with majority of the ruling party waiting for President-elect Santiago Peña riotimesonline.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from riotimesonline.com Daily Mail and Mail on Sunday newspapers.