Paraguay was suspended from the group after last year's impeachment of the left-wing President Fernando Lugo.

BBC: Paraguay president elect, Horacio Cartes

Paraguay's Senate has voted to impeach left-wing President Fernando Lugo, forcing him to step down.

BBC: Paraguay President Fernando Lugo impeached by congress

Paraguayan President Fernando Lugo, 60, was diagnosed with lymphoma in August 2010 but is now in remission after chemotherapy.

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Fernando Lugo of Paraguay, Dilma Rousseff of Brazil and her predecessor Luiz Inacio Lula da Silva have also had cancer.

BBC: US rejects Hugo Chavez remarks on Latin America cancer

Brazilian President Dilma Rousseff and former Paraguayan President Fernando Lugo have also battled the disease and say they are now cancer-free.

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Fernando Lugo had stepped down as Roman Catholic bishop in 2006 to enter politics on a manifesto of tackling inequality and corruption.

BBC: Paraguay profile

It has brushed off demands from Fernando Lugo, Paraguay's new president, to renegotiate a treaty under which his country sells Brazil electricity.

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Asuncion, Paraguay (CNN) -- A delegation from the European Parliament began a mission in Paraguay Monday to investigate the impeachment of former President Fernando Lugo.

CNN: EU commission investigates Paraguayan impeachment

Narcisa de la Cruz, the boy's mother, said she met President Fernando Lugo when she came to him for spiritual guidance while he was bishop.

CNN: STORY HIGHLIGHTS

To illustrate his point, Toro uses the examples of Ollanta Humala in Peru and Venezuelan presidential opposition candidate, Henrique Capriles Radonski. (To this list, we could also add Fernando Lugo in Paraguay).

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