In New York on February 28, an alleged cartel boss with a lengthy prison record in Mexico for the murder of a U.S. drug enforcement agent pleaded not guilty in a U.S. court to drug trafficking charges that carry a possible death penalty.

Mexican authorities extradited 28 suspected cartel members to the U.S. on Thursday in one of its largest handovers in years.

U.S. President has threatened to impose 25% tariffs on Mexican goods starting March 4 due to perceived insufficient progress in halting fentanyl and U.S.-bound migrant flows.

During a hearing before U.S. Magistrate Judge Robert Levy in Brooklyn, 72-year-old Caro Quintero denied charges accusing him of leading a criminal enterprise, drug trafficking, and illegal firearms use.

Caro Quintero's Guadalajara Cartel, once among Latin America's most influential drug organizations, transformed into the present-day Sinaloa Cartel.

Following 28 years in a Mexican prison for the 1985 murder of former DEA agent Enrique "Kiki" Camarena, Caro Quintero continues to deny involvement in the crime.