During a normal inauguration ceremony, the “nuclear football”, containing all the kit the president needs to launch a nuclear strike, is handed over from one presidential aide to another at the stroke of noon.
The handover of the 45 pound leather-covered metal briefcase, and an accompanying card with authentication codes – known as the “nuclear biscuit” – is usually a significant, if discreet, part of the inauguration.
But Trump was expected to leave Washington DC at around 8am to fly to his Florida estate, Mar-a-Lago.
As president, it is understood he will take the nuclear football with him.
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https://www.thesun.co.uk/news/13796583/trump-sparks-nuclear-football-fiasco-flying-codes-florida/