The Inter-American Development Bank issued the bond to finance its growing pipeline of operations in Mexico.
Nicolás Maduro's planned participation in an upcoming regional summit - against the host's wishes - threatens to overshadow talks on key issues such as infrastructure investment and the fight against corruption.
Senior government official Valentín Díaz Gilligan rejects the claims, as former Neuquén province governor Jorge Sapag responds to a separate development.
Luciano Huck hosts the most popular weekly show on television, and a potential run gained renewed attention recently after former president Henrique Cardoso seemed to encourage it.
Venezuelans escaping the hardships of life under President Maduro already account for 10% of the population of the Brazilian state.
As central bankers in Latin America voice concern over cryptocurrencies, a senior US industry figure calls for rules that help lift the veil of anonymity surrounding bitcoin and its peers without shackling innovation.
The surprise jump in US inflation for January represents additional pressure on Mexico's monetary policy board to act in the coming months, and may create more volatility for the peso.