There were several of them:
Eduardo Medina Mora Icaza is the Ambassador to the US for Mexico.
There is an American ambassador to Russia. The current ambassador is John Beyrle. Evidently no American can be a Russian ambassador to other countries.
Joel Robert Poinsett, the 1st ambassador of Mexico.
There has been nothing in the news or otherwise that the Russian Ambassador was at the convention. This sounds like a false rumor.
Answer this question…Which ambassador to Mexico first introduced the Poinsettia to our Christmas customs?
As of July 2014, the American ambassador to Mexico is currently Earl Anthony Wayne. He was appointed to the position in 2011.
Poinsettia (Euphorbia pulcherrima) by the first US ambassador in Mexico Joel Roberts Poinsett.
he was s u.s ambassador for Mexico
he was s u.s ambassador for Mexico
Current (July 2010) ambassador to Mexico is Carlos Pascual (b. 1931).
Germany. More specifically, the German ambassador in Mexico, Arthur Zimmerman.
mexico