How do you negotiate with a government you can't predict? That's the question preoccupying presidents and prime ministers this week, as leaders gather in New York for the UN General Assembly with every major global crisis in the same building at the same time. Christiane and Jamie ask whether wars are solvable and alliances can be strengthened while the world's superpower keeps moving the goalposts.

Christiane brings the view from the very top. Fresh from interviewing Brazil's President Lula, and with Canada's Prime Minister Mark Carney building a political reputation for standing up to Trump, she and Jamie examine how major nations are quietly engineering workarounds for dealing with the Trump administration. Is this a sustainable new model of diplomacy? They also look ahead to two meetings that will test this fragile system: Trump and Xi, with AI now a national security question rather than a tech issue, and Trump and Zelensky, with Kyiv increasingly frustrated by reduced American support.

Later, Christiane responds to Trump's latest attempted crackdown on press freedom: his ban on journalists from CNN, MS Now and Politico from entering the White House. Christiane explains why this is such a concerning move and why authoritarian regimes all over the world will be the ones who benefit.

Christiane Amanpour Presents: The Ex Files is a Global production, available every Tuesday and Thursday on Global Player, YouTube or wherever you get your shows. Make sure you subscribe so you never miss an episode.

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