On the 7th local time, Trump said he would levy tariffs ranging from 25% to 40% on imported products from 14 countries. On the 8th, Trump also said that a new 50% tariff will be imposed on all copper imported into the US. A number of US economists said that the uncertainty of the US tariff policy will eventually cause prices to rise and harm consumers' interests. Douglas Holtz-Egin, the former chief economist of the White House Economic Advisory Committee, said in an interview with the US media that increasing tariffs on copper by 50% will not reduce the risk to national security; it will only cause prices to rise and affect the economy.

On the 7th local time, Trump said he would levy tariffs ranging from 25% to 40% on imported products from 14 countries. On the 8th, Trump also said that a new 50% tariff will be imposed on all copper imported into the US. A number of US economists said that the uncertainty of the US tariff policy will eventually cause prices to rise and harm consumers' interests. Douglas Holtz-Egin, the former chief economist of the White House Economic Advisory Committee, said in an interview with the US media that increasing tariffs on copper by 50% will not reduce the risk to national security; it will only cause prices to rise and affect the economy.