(Washington Examiner) New York City Mayor Bill de Blasio and his security detail violated Mexican and U.S. immigration laws by crossing the southern border on foot during a June visit near El Paso, Texas, according to Trump administration officials.

U.S. Customs and Border Protection made the allegations against de Blasio and his team in a June 25 letter sent by chief patrol agent Aaron Hull for the Border Patrol’s El Paso Sector, and was obtained by the Associated Press.

The letter outlined how de Blasio was denied entry into a holding facility to see where children who were separated from their families while crossing illegally were being held. The mayor and his security detail went into Mexico and crossed back into the U.S. in order to get a view of the facility.

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