 Hello and welcome to NewsHour, live from the BBC World Service in London. I'm Rebecca Kesby. As we keep mentioning on this programme, 2024 is the year of elections. At the moment, the UK and France are about to go to the polls. Tomorrow, Iran goes to the polls. But there's one election this year that could have an impact everywhere, and that is in the United States. For so long, the US and its foreign policy has been crucial to what's often called the world order –