President Donald Trump on Thursday threatened to impose a massive tariff on European alcohol in response to the European Union’s retaliation against his steel and aluminum tariffs – a tit-for-tat escalation of a trade war that could easily get out of hand.

It's approaching 16:00 in the London newsroom and midday in Washington. Trump is welcoming Ireland's Prime Minister, the Taoiseach Michéal Martin, at the White House after tariffs of 25% came into effect on all steel and aluminium imports to the US.