The UK and France have pledged for the first time to co-ordinate the use of their nuclear weapons, and the copper markets are reeling from US President Donald Trump’s threat to impose 50 per cent tariffs on the metal. Plus, Nvidia has hit a record market capitalisation at $4tn.

Mentioned in this podcast:

UK and France vow to co-ordinate nuclear deterrence for first time

Global copper market weighs impact of Donald Trump tariff threat

Nvidia becomes first company to reach $4tn in market value

Send your US politics questions to marc.filippino@ft.com

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Note: An earlier version of this episode contained a segment with several factual errors about the composition of Canada's energy sector. That segment has since been removed from the show.

Today’s FT News Briefing was produced by Sonja Hutson, Katya Kumcova, and Marc Filippino. Additional help from Blake Maples, Michael Lello and David da Silva. Our acting co-head of audio is Topher Forhecz. Our intern is Michaela Seah. The show’s theme song is by Metaphor Music.

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