Arellano: Guess who suddenly has a 'TACO' allergy? How a tasty sounding acronym haunts Trump

Arellano: Guess who suddenly has a 'TACO' allergy? How a tasty sounding acronym haunts Trump

In the annals of four-letter words and acronyms Donald Trump has long hitched his political fortunes on, the word "taco" may be easy to overlook.