FILES - In this combination of two photographs are presidential candidates Efrain Alegre, of the Liberal Party, campaigning in Asuncion, Paraguay, on April 18, 2013, top photo, and in the bottom photo is Horacio Cartes, of the Colorado Party, campaigning in Capiata, Paraguay on April 5, 2013. Paraguay will hold general elections on April 21. (AP Photo/Jorge Saenz, Files)

Associated Press
FILES - In this combination of two photographs are presidential candidates Efrain Alegre, of the Liberal Party, campaigning in Asuncion, Paraguay, on April 18, 2013, top photo, and in the bottom photo is Horacio Cartes, of the Colorado Party, campaigning in Capiata, Paraguay on April 5, 2013. Paraguay will hold general elections on April 21. (AP Photo/Jorge Saenz, Files)
FILES - In this combination of two photographs are presidential candidates Efrain Alegre, of the Liberal Party, campaigning in Asuncion, Paraguay, on April 18, 2013, top photo, and in the bottom photo is Horacio Cartes, of the Colorado Party, campaigning in Capiata, Paraguay on April 5, 2013. Paraguay will hold general elections on April 21. (AP Photo/Jorge Saenz, Files)
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