Donald Trump’s combative trade policies have tipped the world economy into a downturn clouded in heightened uncertainty, with the US among the hardest hit, the OECD said.

President Donald Trump warns of economic ruination if courts rule against his tariffs after the U.S. Court of International Trade blocks emergency import taxes.

President Donald Trump’s global tariffs can remain in place while the courts examine whether the sweeping import taxes that have roiled worldwide trade reach beyond his presidential authority.