Tensions over trade deals exposed at Mercosur summit


              Argentina's President Alberto Fernandez exits a meeting during the Mercosur trade bloc summit, in Montevideo, Uruguay, Tuesday, Dec. 6, 2022. (AP Photo/Matilde Campodonico)
            
              Uruguay's President Luis Lacalle Pou, left, greets Brazil's Vice President Hamilton Mourao at the Mercosur trade bloc summit in Montevideo, Uruguay, Tuesday, Dec. 6, 2022. (AP Photo/Matilde Campodonico)
            
              Argentina's President Alberto Fernandez, left, and his Minister of Foreign Affairs Santiago Cafiero attend the Mercosur trade bloc summit in Montevideo, Uruguay, Tuesday, Dec. 6, 2022. (AP Photo/Matilde Campodonico)
            
              Paraguay's President Mario Abdo Benitez, right, and Paraguay's Minister of Foreign Affairs attend the Mercosur trade bloc summit at the in Montevideo, Uruguay, Tuesday, Dec. 6, 2022. (AP Photo/Matilde Campodonico)
            
              Leaders, from left, Brazil's Vice President Hamilton Mourao, Argentina's President Alberto Fernandez, Uruguay's President Luis Lacalle Pou and Paraguay's President Mario Abdo Benitez pose for a photo at the Mercosur trade bloc summit in Montevideo, Uruguay, Tuesday, Dec. 6, 2022. (AP Photo/Matilde Campodonico)
            
              Uruguay's President Luis Lacalle Pou, left, greets Paraguay's President Mario Abdo at the Mercosur trade bloc summit in Montevideo, Uruguay, Tuesday, Dec. 6, 2022. (AP Photo/Matilde Campodonico)
            
              Argentina's President Alberto Fernandez, left, with his Minister of Foreign Affairs Santiago Cafiero, center, and Uruguay's President Luis Lacalle Pou, right, talk before the start of the Mercosur trade bloc summit in Montevideo, Uruguay, Tuesday, Dec. 6, 2022. (AP Photo/Matilde Campodonico)
            
              Uruguay's President Luis Lacalle Pou winks and flashes a thumbs up as he exits a meeting during the Mercosur trade bloc summit, in Montevideo, Uruguay, Tuesday, Dec. 6, 2022. (AP Photo/Matilde Campodonico)
            
              Leaders attend the plenary session of the Mercosur trade bloc summit in Montevideo, Uruguay, Tuesday, Dec. 6, 2022. (AP Photo/Matilde Campodonico)
            
              Argentina's President Alberto Fernandez waves as he exits a meeting during the Mercosur trade bloc summit, in Montevideo, Uruguay, Tuesday, Dec. 6, 2022. (AP Photo/Matilde Campodonico)