“Tweeting that Jeb Bush should stop “speaking Mexican” is not going to improve Trump’s standing in the Hispanic community.”
If the requirement to win the presidency means the candidate has to speak in a foreign language, then that means we have already lost our country.
“not frown on” not equal to “vote for”
If you're going to slam him for speaking a foreign language then at least correctly identify it as "Spanish" and not "Mexican". I doubt Cuban-Americans think they speak "Mexican" at home.