Secretary of State Marco Rubio is delivering one of the bluntest messages yet on how the Trump administration sees the world. He says "America First" means always doing what is right for America before anything else, even before the United Nations and the global order that, in his words, people in Washington "worshiped" for a very long time. Rubio was careful to add that the administration is not against those institutions, only that it will no longer put them ahead of American interests. He credits the president with driving that approach, and it echoes what he has said before, from his Senate confirmation hearing, where he called the postwar order obsolete, to remarks this September on the sidelines of the UN General Assembly, where he described the international system as failing.

Supporters see the stance as overdue realism, pointing to the questions Rubio himself has raised about whether global bodies have actually helped settle disputes such as Thailand and Cambodia, India and Pakistan, Congo and Rwanda, or the tensions around the Strait of Hormuz. Critics see real risks, warning that downgrading multilateral institutions could strain alliances, weaken cooperation on shared problems, and leave more room for rivals to shape the rules. Rubio has also said that nations must look after their own security when the system does not deliver, and he has insisted the approach is not isolationism. What remains unclear is how far this philosophy will reshape America's relationships in practice, and whether the rest of the world will adapt to it or push back.