President Trump's Friday flurry of pronouncements marks the return of negotiation by smartphone and may trigger another period of profound uncertainty for international trade and financial markets.
The British-born newspaper-owner whose takeover of The Daily Telegraph appears to have been thwarted by a Β£500m deal with RedBird Capital Partners has called on the title's stakeholders to rally behind his bid instead.
Donald Trump has threatened to impose a 50% tariff on the EU, starting from next month, after saying that trade talks with Brussels were "going nowhere".