Tehran, Taiwan, trade … what are the hazards facing Trump on Xi summit tightrope?

US leader enters talks with superpower rival from vulnerable position, but will be hoping for economic wins amid turbulent backdrop

If all goes to plan over the next few days – and that is a big if – Donald Trump will arrive in Beijing on Wednesday for a highly anticipated summit with Xi Jinping, China’s leader.

The trip will mark the first time a US president has visited China in nearly a decade. The last visit was also made by Trump, during his first term, in 2017.