As Mexicans go to the polls Sunday to vote for a new president, the country is facing its most violent election campaign in its history with more than 225 candidates and officials killed.As Mexicans go to the polls Sunday to vote for a new president, the country is facing its most violent election campaign in its history with more than 225 candidates and officials killed.Read Moreba3cc29c-07f2-50ac-b378-4434fc673d60, fox-news/world/world-regions/location-mexico, fox-news/topic/mexican-cartel-violence, fox-news/politics/elections, fnc, fox-news/world, article, Fox News, Armando VelascoFOX News : World