China’s leader, Xi Jinping, says he is prepared to dance if it means sidestepping some of the worst of Donald Trump’s trade tariffs. Last week he sent a letter to India’s president, Droupadi Murmu, urging her to join him in a tango to celebrate 75 years of ­bilateral trade. Xi said it was “the right choice” for the two countries to be “partners of mutual achievement and realise the ‘Dragon-Elephant Tango’”, which, he added, “fully serves the fundamental interests of both countries and their peoples.” Beijing is on a wide-ranging charm offensive, aimed at redirecting its exports away from the…