Donald Trump's hyperbolic rhetoric about Mexico apparently has claimed a victim. Mexico abruptly replaced its low-profile ambassador to Washington with an experienced, well-traveled diplomat and put a public relations expert into its Foreign Ministry’s top spot for American affairs. {snip} Named to replace him is Carlos Manuel Sada Solana, who has been consul general in Los Angeles for three years and previously served at Mexican consulates in New York, Chicago, Toronto and San Antonio. A Mexican Foreign Ministry statement announcing the changes emphasized Sada’s “broad experience … protecting the rights of Mexicans in North America, as well as defending the...