Venezuelan President Nicolás Maduro has announced that he will take up arms and start a war if he loses the May 20 election to opposition rival Henri Falcón—who, he said, wants to sell the country out to “the gringos [whites] and Europeans.” Maduro made the announced in a campaign speech this week, accusing Falcón, of wanting to sell the country out to “the gringos.” Maduro said the opposition’s...