US states and small businesses that won a ruling that most of President Donald Trump’s global tariffs are illegal want them blocked during the administration’s appeal, saying they’re suffering immediate harm from economic uncertainty around the levies.

Economic growth will slow this year and next as the trade war hampers development in the United States and around the world, the Organization for Economic Cooperation and Development said.

President Donald Trump is using his love of tariffs to threaten high-profile American companies. Over the past month, Trump has said he’d like to target two specific and very different companies — Apple and Mattel — with tariffs aimed at their key products over comments by their CEOs.

The OECD said President Donald Trump's tariffs are hitting economic growth in the US and globally too, and warned of consequences for jobs and incomes.