Washington D.C. | US President Donald Trump has warned of strict trade measures against countries that provide military weapons to Iran. In a social media announcement, he stated that all goods entering the US from such nations would immediately face a 50 percent tariff with no exemptions.He made this announcement just hours after a two-week ceasefire agreement was reached with Tehran. However, he did not clarify what legal authority he would use to implement such tariffs.Previously, the US Supreme Court in February rejected the authority to impose broad tariffs under the International Emergency Economic Powers Act (IEEPA) used by Trump....