The Unconstrained Presidency: How Trump's Second Term is Reshaping Global Order
WASHINGTON/BRUSSELS—The United States’ recent military engagement with Iran has ignited a profound debate among diplomats and legal scholars: Is the post-World War II framework of international law and institutions still capable of restraining the world’s sole superpower?
In his second term, President Donald Trump has pursued an aggressive, unilateral foreign policy that has left allies reeling and adversaries calculating. Actions including strikes on Venezuela and Iran, threats to annex Greenland, and sweeping tariffs have been executed with little regard for established diplomatic protocols or the United Nations Charter.
“The system was built on the assumption that major powers, especially the U.S., had a vested interest in maintaining its rules,” said Michael Becker, a professor of international law at Trinity College Dublin and former International Court of Justice staffer. “What we’re witnessing is the rejection of that assumption. The constraint international law provides on U.S. action under this administration has proven negligible.”
Trump has publicly framed his authority as bound only by his “own morality,” a stance that renders traditional legal and institutional guardrails optional. While the U.S. Supreme Court has intervened on tariff policy, other domestic institutions—Congress, the Department of Justice—have largely failed to check presidential ambitions on national security matters.
“Congress is not doing its constitutional job to constrain him. The Supreme Court is in his pocket,” argued Kim Lane Scheppele, a professor of international affairs at Princeton University. “What’s missing is leadership to oppose Trump. The result is a dangerous concentration of power.”
The international response has been fragmented. European “middle powers” successfully rallied to block the annexation of Greenland but offered muted criticism over the Iran and Venezuela conflicts, revealing strategic hesitancy. Gulf states, facing the brunt of Iranian retaliation, are privately reassessing their security dependence on Washington. Meanwhile, China and Russia have issued condemnations but avoided direct escalation, while BRICS nations like India have opted for strategic silence.
Richard Gowan, UN Director at the International Crisis Group until 2025, notes that the United Nations itself has been alternately sidelined and instrumentalized. “Trump is learning he can sidestep the UN when he wants to and get away with it,” Gowan said, “while occasionally using it for legitimacy when convenient.”
Paradoxically, the most immediate constraints may now be economic rather than political. Oil prices have skyrocketed following hostilities in the Strait of Hormuz, a critical chokepoint for global energy supplies. Despite the International Energy Agency’s release of emergency reserves, markets remain jittery, with Iran warning of prices reaching $200 a barrel.
“Ultimately, the factors that might constrain Trump’s impulses are the economic fallout from disrupting global energy markets and a broader voter disenchantment with his globe-trotting militarism,” Becker concluded.
As the conflict with Iran shows no clear resolution, observers warn that in the absence of functional institutional checks, market forces and domestic political costs may become the final arbiters of a presidency operating with historically few constraints.
Reader Reactions
“Finally, someone is cutting through the red tape and putting America first. These international bodies have been holding us back for decades. Strength is the only language our enemies understand.” — Mark Reynolds, small business owner from Ohio.
“This is a terrifying erosion of the global rule of law. The short-term political gains for this administration are creating long-term instability that will haunt us for a generation. Our allies will never trust us the same way again.” — Dr. Elena Rodriguez, professor of political science at Stanford University.
“The analysis misses the point. It’s not about Trump breaking norms; it’s about those norms being hypocritical and outdated. The Global South has long seen the UN Charter as selectively enforced. The real story is the desperate scramble by Europe and others to adapt to a world where the U.S. no longer plays by the old rules.” — David Chen, geopolitical risk analyst based in Singapore.
“It’s an absolute disgrace. He’s acting like a warlord, not a president. Where are the impeachments? Where are the mass protests? The system is broken, and we’re all just watching the world burn for his ego and his donors’ profits.” — Sarah Johnson, nurse and activist from Portland.