A new publication on alleged links between drug trafficking and the president's inner circle once again strains the bilateral relationship. The main source of the report was a DEA investigation that never became a formal accusation.

“The DEA is a headache in Mexico. It is not new, it has been going on for a long time,” declared Marcelo Ebrard, Secretary of Foreign Affairs during the first five years of the López Obrador Administration. The episode was the last link in a long chain of frictions and disagreements between the Mexican Government and the United States agencies.