The UK and France have pledged for the first time to co-ordinate the use of their nuclear weapons, the copper markets are reeling from US President Donald Trump’s threat to impose 50 per cent tariffs on the metal, and Canada has a plan to offset American energy levies by exporting natural gas to the rest of the world. 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

Canada’s bid to become an energy superpower

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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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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