Here you will find statements from members of Congress on the Mexican-American alliance against some of the drug cartels. These involve both the Zetas and the Sinaloa cartels. Here, Representative McCaul discusses cartel involvement in a plot to assassinate an ambassador to Saudi Arabia. It is interesting to wonder to what extent rival cartels might have cooperated with the Mexicans and Americans in the fall of “El Chapo?”
The weakening of one cartel means the strengthening of another.
Hearing: Taking Down the Cartels: Examining United States – Mexico Cooperation | The House Committee on Homeland Security