"Other trading partners observing these threats will have the same mistrust of the negotiation process," experts argue.

Financial markets greeted US President Donald Trump’s tariff deal with Indonesia with little fanfare Wednesday, signaling the rate of around 20% that was once viewed as punitive is now seen as workable.

President Trump said he plans to write to many nations setting a blanket unilateral tariff rate, which he said could be 10% or 15%. "We’ll have well over 150 countries that we’re just going to send a notice of payment out" detailing tariffs,