The US president, Joe Biden, has announced a 100% tariff on Chinese-made electric vehicles as part of a package of measures designed to protect US manufacturers from cheap imports. In a move that is likely to inflame trade tensions between the world’s two biggest economies, the White House said it was imposing more stringent curbs on Chinese goods worth $18bn. Sources said the move followed a four-year review and was a preventive measure designed to stop cheap subsidised Chinese goods flooding...