Mexico President Enrique Pena Nieto and Republican presidential nominee Donald Trump shake hands after a joint statement at Los Pinos, the presidential official residence, in Mexico City, Wednesday, Aug. 31, 2016. Trump is calling his surprise visit to Mexico City Wednesday a 'great honor.' The Republican presidential nominee said after meeting with Pena Nieto that the pair had a substantive, direct and constructive exchange of ideas.v(AP Photo/Marco Ugarte)