Donald Doubles Down: Trump Challenges SCOTUS, Raising Tariffs to 15% - La Voce di New York

The day after the Supreme Court’s halt, Donald Trump did not back down an inch—on the contrary, he doubled down. And he did so in the way most natural to him: with a post, a blunt declaration, almost more a political proclamation than an institutional act, announcing that global tariffs would rise from 10% to 15%, despite the warning that had just come from the justices.

The Court, by a clear 6–3 majority, had just sharply limited presidential authority on tariffs, ruling that the International Emergency Economic Powers Act of 1977 cannot be used to impose global tariffs and that tariff authority remains a prerogative of Congress. In other words, not a legal technicality, but a direct, precise, and unequivocal constitutional reminder.

Yet the White House’s response was not one of reflection, but of immediate political escalation.

An announcement that feels like a challenge

In his social media message, Trump called the Court’s decision “ridiculous, poorly written, and extraordinarily anti-American,” claiming he had made his decision after a “thorough, detailed, and comprehensive analysis.” He then declared that, as president, he would raise global tariffs “effective immediately” to 15%, arguing that many countries had “robbed” the United States for decades.

It is not yet clear whether this is another outburst of personal irritation each time he encounters an institutional obstacle along the path he had envisioned, or a concrete threat destined to become a new executive order. Politically, however, the fact remains: the ruling was not absorbed—it was rhetorically ignored.

The president had already signed a proclamation imposing a 10% global tariff, citing a different legal basis—Section 122 of the Trade Act of 1974—which allows tariffs of up to 15% for a limited period of 150 days in cases of serious balance-of-payments imbalances. Now that 10% becomes 15%, at least in his stated intentions, shifting the clash from the legal arena to the institutional one.

The Constitution and the question of power

The justices did not reject an economic strategy; they reaffirmed a basic constitutional principle: the power to impose taxes and tariffs belongs to Congress alone, not the White House. The ruling invalidated a significant portion of the tariff regime built in recent months precisely because it was grounded in emergency powers never intended for global trade policy.

Trump, however, reacted as though it were a political dispute, not a legal limit. He personally attacked the justices—including some appointed during his first term—and praised the dissenting judges, turning a legal decision into an ideological battleground.

In this moment, something deeper emerges than a simple dispute over tariffs: the vision of an increasingly imperial presidency, in which the executive claims the right to act without answering to Congress or, implicitly, to the oversight of the Supreme Court. It is not merely a defeat on trade policy; it is a direct collision between a conception of power and the constitutional architecture.

Markets, businesses, and strategic uncertainty

Business associations reacted with concern, noting that the overlap between judicial rulings and unilateral announcements creates uncertainty that immediately affects import costs, supply chains, and industrial planning. For companies, the problem is not only the level of tariffs, but their unpredictability.

Analysts observe that the new move opens an unprecedented front: a president determined to maintain an aggressive tariff line and a Supreme Court that has just redefined the boundaries of executive power. The result is a fluid and potentially explosive landscape, in which every new initiative could be followed by legal battles destined to last for years.

Meanwhile, crucial questions remain open—from possible refunds on the more than $130 billion already collected through previous tariffs to the real political sustainability of a strategy that forces even Congress, including part of the Republican majority, to take a stand on measures that risk raising costs for voters and businesses.

The clash between branches of government

Political reactions were immediate. Democrats accused the president of deliberately ignoring a Supreme Court ruling and of continuing—through a decision contrary to the spirit of the ruling—to shift the cost of tariffs onto American consumers. Some members of Congress, including Republicans, now fear an open institutional conflict between the executive, legislative, and judicial branches.

The paradox is clear: the more the Court formally limits presidential authority, the more Trump’s political response seems to move in the opposite direction, with increasingly assertive and unpredictable announcements, as if to demonstrate that he considers himself immune to the justices’ decisions. Tariffs remain his preferred tool for rewriting the rules of global trade and exerting international pressure, but they also become the symbolic battleground of an internal struggle over the very meaning of constitutional limits.

And so, while the Supreme Court calls for a balance of powers, the White House escalates, turning a judicial ruling into a political show of strength. It is not yet clear whether the 15% will actually be imposed as announced, but the signal is already political before it is economic: the president does not intend to retreat, not even in the face of an explicit ruling by the nation’s highest court.