The Whitehall Sources podcast goes deep into one of the most unsettling weeks in global politics as Donald Trump triggers fresh anxiety across NATO, floats a deal over Greenland, drops European tariffs — and leaves allies questioning the future of the alliance.

Hosts Calum Macdonald and political strategist Jo Tanner are joined by former NATO spokesperson Oana Lungescu, the longest-serving spokesperson in NATO history, to unpack what really happened behind the scenes — and how close the alliance came to crisis.

They explore:

• Trump’s Greenland comments and NATO’s response

• Whether NATO’s future was genuinely at risk

• Mark Rutte’s crucial role as NATO Secretary General

• Why defence spending, Arctic security and China matter here

• How Keir Starmer handled Trump — and whether his approach worked

• What NATO’s core interest really is in 2026

The episode also marks the emotional farewell of Kirsty Buchanan, former special adviser to Theresa May, as she steps away from the podcast after more than three years and 170 episodes — reflecting on politics, compromise, and the shifting centre ground in Britain.

🎧 A must-listen for anyone trying to understand Trump, NATO, UK foreign policy, and the fragile state of global security.

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Trump, NATO & Greenland: Inside the Crisis That Shook the Alliance