The pomp is mostly over. Donald Trump, once America’s 45th president, has now been sworn in as the 47th. He has promised fast action to put his campaign promises into practice, starting with a stream of executive orders. Our tracker of the first 100 days of his term will keep you up to date on his major decisions, the confirmation of his cabinet nominees and the impact of all this on his popularity. Meanwhile, our Charlemagne columnist asks how Europe will weather the Trumpnado that is headed its way.