"Candidates have not appealed to them {Hispanics} directly, which is difficult because many, if not most, Hispanic Texans speak Spanish at home."

What's so difficult about learning Spanish? I'd have thought that a combination of basic courtesy and self-help would ensure than any serious candidate for political office, in a country where there is a very sizeable Spanish speaking population, would have a fairly good acquaintance with the language.

It's probably about the easiest foreign language for an English speaker to learn, because it is so regular. Much easier than French or German. And far easier than English is for Spanish speakers, which must be a nightmare.