The Sinaloa File: The Power Struggle Behind the War

The Sinaloa file is no longer solely a judicial matter. It is now part of a struggle over information, sovereignty, and power.

Sinaloa, Mexico | August 2026

The plane landed in New Mexico on July 25, 2024. On board were Ismael “El Mayo” Zambada and Joaquín Guzmán López, one of the sons of Joaquín “El Chapo” Guzmán. In the hours that followed, there were more questions than answers. It was unclear whether the aging cartel leader had surrendered, been deceived, or arrived as part of an operation known in advance to Washington. Only one thing was immediately apparent: the internal balance of the Sinaloa Cartel had been broken.

Two years later, a US official who would help shape the judicial response to Sinaloa’s upheaval now stands at the summit of American intelligence. Jay Clayton, a former chair of the Securities and Exchange Commission and later the US attorney in Manhattan, has coordinated all 18 components of the US intelligence community since August 2026. His is not the conventional trajectory of a spy. He comes from corporate law, financial markets, and securities regulation. Clayton led the SEC during Donald Trump’s first administration, and it was Trump who returned him to the center of power by nominating him as director of national intelligence.

Contemporary drug trafficking can no longer be understood by tracking armed men and illicit shipments alone. It also moves through shell companies, cryptocurrencies, insurers, maritime corridors, supply chains, and chemical precursors traded across Asia. It depends on police officers who learn about raids before they begin and officials capable of quietly disabling an institution. Money offers a different map of power. Clayton knows how to read it.

While still leading the US Attorney’s Office for the Southern District of New York, Clayton announced an indictment on April 29, 2026, against Rubén Rocha Moya and nine other current and former Sinaloa officials. Prosecutors allege that they protected cartel operations, disclosed sensitive information, and accepted bribes in exchange for facilitating the flow of fentanyl, cocaine, heroin, and methamphetamine into the United States. Rocha rejected the charges and described them as an offensive against his administration, Morena—the party governing Mexico—and national sovereignty. The allegations are not a conviction. Their political consequences, however, began well before any trial.

Rocha temporarily stepped aside as governor of Sinaloa on May 2. Yeraldine Bonilla Valverde assumed office on an interim basis, while President Claudia Sheinbaum demanded sufficient evidence before Mexico would consider an arrest or extradition. The Mexican position is understandable: no sovereign state readily accepts another country determining the fate of its elected authorities. Yet the underlying problem remains. If the US allegations are unfounded, Mexico needs to demonstrate it. If they contain verifiable evidence, Mexico must investigate that too.

The most consequential part of the case does not concern drug shipments alone. It concerns the formation of political power. US prosecutors claim that Los Chapitos—the faction led by El Chapo’s sons—helped secure Rocha’s 2021 electoral victory through intimidation and the kidnapping of political rivals, expecting protection once his government took office. That allegation remains to be proven. But there is a difference between buying an official’s loyalty and helping construct a government. At some point, corruption ceases to be a collection of bribes and begins to resemble a parallel form of sovereignty.

Los Chapitos are central because they embody something different from the criminal order long associated with El Mayo. Zambada cultivated discretion, territorial mediation, and relationships capable of surviving successive governments. El Chapo’s sons came of age in another economy: synthetic drugs, dispersed laboratories, youth recruitment, cryptocurrencies, and violence staged as spectacle and warning. Fentanyl placed them at the center of US politics. In Washington’s eyes, they ceased to be merely the heirs to a Mexican drug lord and became a threat perceived at home.

El Mayo’s letter introduced a contradiction that has never disappeared. Zambada said that on the day of his capture he expected to meet Rocha and Héctor Melesio Cuén Ojeda to mediate a political dispute. According to his account, Cuén was killed at the same location where Zambada himself was subdued before being flown to the United States. Rocha said he was outside Mexico at the time. Sinaloa authorities initially attributed Cuén’s death to a botched robbery at a gas station, an account later challenged by federal investigators.

None of this proves that Rocha was present. Nor is there public confirmation that El Mayo supplied the evidence used by prosecutors in New York. One uncomfortable question nevertheless remains: why was a cartel leader being summoned—or why did he believe he was being summoned—to intervene in a political conflict? The answer may reveal more about the actual structure of power in Sinaloa than any formal description of its institutions.

The US indictment primarily links the officials to Los Chapitos, enemies of El Mayo’s faction. Perhaps there is no contradiction. Local power may have coexisted with different criminal groups, negotiating, resisting, or yielding according to territory and circumstance. Criminal organizations are not permanent blocs either. Alliances change. Political relationships sometimes survive those ruptures.

Joaquín Guzmán López allegedly used Zambada as a bargaining chip with the United States. Removing El Mayo from the board did not destroy La Mayiza, the faction aligned with him. It opened a war. Washington received the veteran cartel leader as a prisoner and later sentenced him to life in prison, together with a $15 billion forfeiture order. Sinaloa received killings, disappearances, displacement, and a conflict whose end remains beyond view. Capturing a leader does not necessarily recover the territory he once controlled.

Clayton’s rise does not automatically transform the criminal case into an intelligence operation. His office does not conduct the prosecution or authorize arrests in Mexico. What matters is the shift in perspective. A case once framed as drug trafficking and corruption can now be viewed through the lens of hemispheric security: government infiltration, political financing, global supply chains, and institutional vulnerability.

The United States designated the Sinaloa Cartel as a foreign terrorist organization in February 2025. Since then, knowingly supporting it can carry consequences extending beyond conventional drug laws. Visa revocations, frozen assets, financial sanctions, and prosecutions for material support are far more plausible than designating an entire Mexican political party as terrorist. Morena has received no such classification. Individual allegations cannot simply be extended to millions of party members and voters.

That boundary would move if evidence showed that party structures had systematically participated in candidate selection, campaign financing, or territorial protection for a cartel. Publicly available evidence has not yet established that. Mexico’s opposition is nevertheless taking that narrative to Washington, while Morena tries to contain the damage ahead of the 2027 elections. Courts move at their own pace. Politics rarely waits.

An unequal struggle over information is also underway. Mexico retains jurisdiction within its territory and can demand evidence before extraditing one of its citizens. Washington controls visas, sanctions, advanced intelligence capabilities, and much of the access to the international financial system. It can raise the cost of an accusation before securing a conviction. The indictment may contain legitimate evidence while also serving as an instrument of geopolitical pressure. The two possibilities can coexist.

Nor does the fentanyl chain end in Sinaloa. It links chemical precursors produced or traded through China and other parts of Asia, Mexican laboratories, cross-border routes, American consumers, and capital moving through international financial institutions. Weapons travel south while drugs move north, although money follows less visible paths. Mexico often invokes US demand whenever Washington raises Mexican corruption. It is not an adequate answer. Nor is it an irrelevant observation.

The repercussions could eventually reach the United States–Mexico–Canada Agreement, nearshoring, and corporate decisions about operating in regions under scrutiny. Once a criminal organization is treated as terrorist, its relationships cease to be a strictly law-enforcement concern. They become banking, commercial, legal, and reputational risks. Washington may not need to declare a government an enemy. It may only need to make relationships with certain individuals, companies, or territories prohibitively expensive.

Meanwhile, Sinaloa’s population remains trapped between categories formulated far from everyday life. For a displaced family, a shuttered business, or a threatened journalist, arguments over jurisdiction have limited meaning. Sovereignty is invoked in Mexico City. Sanctions are designed in Washington. Violence unfolds on the streets of Sinaloa.

The case has not demonstrated that a political party was captured by organized crime. Nor can everything that has happened be reduced to a baseless American persecution. Between those convenient certainties lies a more difficult territory: weakened institutions, elections under suspicion, criminal factions fluent in the language of politics, and a country compelled to defend its sovereignty while proving that it can still exercise it.

The question is no longer merely what Washington knows. It is how much Mexico is prepared to investigate before someone else answers on its behalf. In Sinaloa, it remains unclear who still possesses enough authority to do so.

Mario López Ayala, PhD

Researcher and Director of Phoenix24

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