The National Human Rights Commission called the authorities to find the guilty parts.
Protesters at a rally in Southern California held by Donald Trump on Wednesday carried signs saying "Stop Nazi Trump" and "Make America Hate Again."
There is an investigation into the alleged links between organized crime and the owners of the property used as a location for his controversial video.
Some 3,423 people, most from El Salvador and Honduras, sought asylum in Mexico in 2015.
He reiterated his warning that there would be riots if the Republicans deny him the nomination.
The only person who can stop Trump from egging on the brawling crowds is himself.
"We are against the ugliness that has engulfed this election season. And he has driven much of it, from his comments about Mexicans and Muslims to the violence at his rallies" said Rabbi David Paskin.
"My people aren't violent," Trump said at his rally in Cleveland.
Francis said the horrors of drug violence required "prophetic courage" from the church and a pastoral plan that involves families, parishes, schools and communities.
In a speech alongside the pope at Mexico's National Palace, Peña Nieto mentioned hunger, inequality and the dangers of people "letting themselves be carried away by evil."