A Mexican federal official told The Associated Press that Zambada and Guzmán López arrived in the United States on a private plane and turned themselves in to authorities.
Arizona Senators Mark Kelly and Kyrsten Sinema introduced new legislation that would both improve border security and the retention of Shadow Wolves agents.
A new government-funded study shows that seizures of illicit fentanyl nationwide increased dramatically from 2017 to last year, with Arizona among the top states leading the increase.
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