Senior US officials say President Donald Trump's tariff defeat at the Supreme Court will not unravel trade deals negotiated with key US partners, as the administration moves to defend its assertive trade policies. Agreements reached with China, the European Union, Japan and South Korea remain in place, US Trade Representative Jamieson Greer said on CBS's Face the Nation. However, Trump's pledge to reimpose tariffs at 15% on all nations could result in the UK facing the largest increase, up from...