Ricardo Sánchez, known as “El Mandril” on his Spanish drive-time radio show in Los Angeles, has taken to calling Donald J. Trump “El hombre del peluquín” — the man of the toupee.

Some of Mr. Sánchez’s listeners are less kind, referring to Mr. Trump, who has dismissed some Mexican immigrants as “rapists” and criminals, simply as “Hitler.”

Mr. Sánchez says that he tries to focus on the positive in presidential politics, but he, too, at times has used harsh language to describe Mr. Trump, according to translations of his show provided by his executive producer.

“A president like Trump would be like giving a loaded gun to a monkey,” Mr. Sanchez said in one broadcast. “But a gun that fires atomic bullets.”