US President Donald Trump's trade war may be here to stay, despite the fact that billions of dollars in tariff revenue has been refunded to companies after the Supreme Court ruled his initial levies illegal. Stephanie Flanders is joined by Bloomberg senior writer Shawn Donnan and Anna Wong, chief US economist at Bloomberg Economics, to explore what if anything the policy has delivered for US manufacturing and the federal budget, and why the biggest consequences may be the ones no one predicted.