The Power of the Dog

The Scale

Don Winslow spent years researching the Mexican drug trade before writing this novel, and the research shows. The Power of the Dog is not a thriller in the conventional sense — it has a thriller’s pace and propulsion, but it has a history’s ambition and moral seriousness.

Art Keller, DEA agent, pursues the Sinaloa Cartel across three decades. The novel tracks the cartel’s growth from regional operation to multinational criminal enterprise, the corruption of Mexican police and politics, the involvement of the CIA (in the Iran-Contra era and after), and the cost of the drug war to everyone it touches — including the people who wage it.

The Moral Weight

Winslow’s achievement is to resist the conventions that would make this material comfortable. The DEA are not heroes. The cartel leaders are not simply villains. The border is not a clean line between good and evil but a place where the consequences of policy, poverty, and institutional corruption accumulate.

Keller and Barrera

The decades-long war at the novel’s heart is, finally, personal. Art Keller’s obsessive pursuit is set in motion by the murder of a fellow agent and friend, and it hardens into a private vendetta that consumes thirty years of his life. His antagonist and dark mirror is Adán Barrera, who begins as an almost sympathetic young man and rises, with terrible logic, into the cold and brilliant heir of a drug empire. Winslow braids their fates together across a vast supporting cast — the Mexican narco families warring among themselves, an Irish hitman, a Manhattan call girl, a priest — so that the book reads less like a thriller about catching a kingpin than like a tragedy in which two men deform each other across a generation. The title, drawn from Psalm 22 (“Deliver my soul from the sword, my darling from the power of the dog”), names exactly this: the predatory pull of power, greed, and vengeance that neither man escapes.

The Politics Beneath the Bloodshed

What gives the violence its weight is the history Winslow refuses to soften. The novel runs from the 1975 anti-poppy campaign of Operation Condor through the Iran-Contra years, and its most damning argument is that the United States’ Cold War obsession with fighting Communism led its own agencies to protect and even finance the very traffickers the DEA was supposedly fighting — cartel money laundered into the Contra war while the drug war was sold to the public as a moral crusade. The result is a portrait of the border not as a frontier between good and evil but as a place where policy, poverty, anti-communism, and institutional corruption converge into industrial-scale carnage. Winslow indicts the system rather than any nationality, and that even-handedness is what elevates the book from thriller to genuine political fiction.

Winslow’s Achievement

What makes the book remarkable is the control Winslow maintains over an almost unmanageable amount of material — thirty years, two nations, a dozen major players, and the tangled real history of the drug trade — without ever letting it collapse into either documentary dryness or pulpy excess. He had spent years immersed in the subject, and the research is worn lightly: the cartel world feels lived-in rather than encyclopedic, conveyed through character and incident rather than lecture. The prose is propulsive, often cinematic, capable of switching from a quiet domestic scene to an act of appalling violence within a paragraph, and the structure builds with the inevitability of tragedy toward a reckoning that feels earned rather than engineered. Winslow has been compared to writers like Cormac McCarthy and to the sprawling institutional storytelling of The Wire, and the comparison holds: this is genre fiction operating at the level of literature, using the conventions of the thriller to deliver a serious moral argument about power and complicity.

The novel also resists the genre’s usual reassurances. There is no master detective who restores order, no clean victory that justifies the bloodshed, and no character who emerges uncorrupted. Even Keller, the nominal hero, is compromised by his methods and his obsession, while Barrera retains flashes of tenderness that make his monstrousness harder to dismiss. Winslow’s refusal to resolve these tensions is deliberate: the drug war, he insists, has no winners, only survivors and casualties, and any story that pretends otherwise is a lie. That moral honesty, sustained across more than five hundred pages, is the book’s deepest achievement and the reason it lingers long after the final chapter — a thriller that leaves you not entertained so much as changed.

What to Know Going In

This is a long, demanding, and deliberately brutal novel. The cast is large and spans two countries and three decades, so it rewards attentive reading; the violence is extensive and at times genuinely harrowing, because Winslow’s whole purpose is to deny readers the comfortable distance that pulpier crime fiction provides. The Power of the Dog is the opening volume of a trilogy — followed by The Cartel and The Border — and many readers find the three books together constitute one of the major achievements of modern American crime writing. For readers of serious crime fiction, and anyone trying to understand the real machinery of the drug war, it is essential.

Our rating: 4.4/5 — One of the great American crime novels — epic in scope, serious in moral vision.

Reading Guides

• Where to Start with Don Winslow
• No Country for Old Men by Cormac McCarthy — Full Review