This week on GZERO World, Council on Foreign Relations President Michael Froman tells Ian Bremmer that under Trump's second term, he’s been less surprised by a single policy shift than by how quickly other countries have adapted to them.

From sweeping tariffs to threats of military action, Trump has demonstrated a willingness to use American leverage early and often. “They’re not happy necessarily about it,” Froman says of US allies and partners, “but they are adjusting.”The longer-term concern, Froman warns, is structural. If the United States shifts from defending the postwar rules-based order to challenging it, does that create a “permission structure” for others to act unilaterally as well? And what kind of global system emerges if more countries decide to follow Washington’s lead?

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