New York City Mayor-elect Zohran Mamdani calls himself a “Democratic Socialist,” but he clearly doesn’t support the cooperative federalism that keeps American democracy functioning.

Just weeks after projecting a diplomatic, moderate tone during an Oval Office visit, Mamdani issued a message that should chill any American who values the rule of law. Responding to a recent Immigration and Customs Enforcement raid in Chinatown, Mamdani in a video urged illegal aliens to “stand up” to federal agents by exploiting every legal loophole to stall enforcement.

Mamdani’s encouragement mirrors the toxic doctrine of states’ rights absolutism that fueled the nation’s march toward civil war.

“We can all stand up to ICE if you know your rights,” he declared, offering a tutorial on how to shut doors in agents’ faces, demand endless clarifications, and film operations to disrupt them.

This is a blueprint for openly defying federal authority, wrapped in the rhetoric of righteous resistance. As a self-avowed Democratic Socialist who promised to “fight back” against ICE and labeled the agency a “reckless entity,” Mamdani reveals a contempt for constitutional order that has moved from fringe to mainstream on the American left.

The peril in this rhetoric is not theoretical. While the circumstances differ, Mamdani’s encouragement mirrors the toxic doctrine of states’ rights absolutism that fueled the nation’s march toward civil war. In the 1850s, leaders of the nascent Confederacy preached nullification — the idea that states could ignore federal laws they deemed unjust, particularly those touching slavery.

South Carolina’s 1832 Ordinance of Nullification, defying federal tariffs, was a dry run for the secessionism that exploded in 1861. Confederate Vice President Alexander Stephens later declared in his “Cornerstone Speech” that the Confederacy rested on the principle of state sovereignty over federal authority.

Fast-forward to Mamdani’s New York, a sanctuary city where local laws are exalted above national ones and illegal aliens are coached to treat ICE as an invading force. This reckless approach can only ratchet up tensions, increasing the likelihood of violent confrontations and accelerating the erosion of our constitutional order.

This isn’t rights protection. It’s the resurrection of a philosophy that once split the nation in two. The Civil War claimed more than 600,000 lives because defiant states elevated their local priorities over the union’s supremacy. Mamdani’s sanctuary-state playbook risks igniting a similar dynamic — one resisted arrest at a time.

The hypocrisy is glaring. For nine years, Democrats and their media allies branded Donald Trump a “threat to democracy,” insisting that “no one is above the law.” Nancy Pelosi tore up his State of the Union address on camera, declaring his actions an assault on the Constitution. Chuck Schumer warned that Trump’s border enforcement would “Balkanize” America.

Yet when Mamdani — a rising progressive star — directly subverts federal immigration statutes, the same chorus falls silent. No calls for indictments. No panic-stricken editorials about authoritarianism.

Democrats declared Trump’s alleged election interference a constitutional crisis. But Mamdani’s defiance goes straight at the Supremacy Clause, which makes federal law the “supreme law of the land.” By elevating New York’s sanctuary policies and restricting cooperation with ICE to only 170 “serious crimes,” Mamdani is not safeguarding democracy. He is undermining it.

America’s founders envisioned a balance: states as laboratories of democracy but always subordinate to the union’s paramount authority. Sanctuary cities flip that design on its head. Once New York shields violators of immigration law, copycats are inevitable. What happens when California nullifies EPA emissions rules? Or Texas ignores ATF gun tracing? Or Florida decides federal taxes are optional?

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Photo by PATRICK T. FALLON/AFP via Getty Images

Localized resistance metastasizes into a patchwork of fiefdoms where the law becomes whatever the local politician decrees.

Mamdani’s vision, if replicated, promises rapid national deterioration: a swelling illegal population operating in the shadows, strained public resources, and cities like New York — home to at least a half-million illegal aliens — functioning as de facto no-go zones for federal agents.

Progressives who cheered Mamdani’s victory must reckon with the monster they helped unleash: a leader who cloaks defiance in compassion while sowing the seeds of anarchy. American federalism depends on shared laws, not selective compliance. If New York wants to lead, it should honor the union that made its success possible — not mimic the Rebels of 1861.

Otherwise we’re not securing the nation. We’re dismantling the house that stands between order and oblivion.