This is probably the biggest case of the term. And some people have said this is the biggest case in decades because it's going to determine the president's authority. So this is about the International Emergency Economic Powers Act or IPA for short.And no president has used this to impose tariffs. It doesn't mention tariffs or duties in the language. But President Trump is saying that he can exert emergency powers.So what the statute does say is that in unusual and extraordinary circumstances, a president ...

特朗普政府拟发紧急状态声明 为向巴西征税提供法律依据 （IEEPA）为基础对部分国家实施"对等关税"，理由是这些国家对美存在"大而持续的贸易顺差"。截至 目前，所有遭征10%以上关税的国家均对美有货物顺差，唯一的例外便是巴西。 金十数据7月25日讯，据知情人士透露，特朗普政府正准备发布一项新的紧急状态声明，为对巴西加征 关税提供法律依据。此举意在为特朗普先前威胁的对巴西商品征收高达50%的关税铺路。知情人士称， 美国贸易代表办公室（USTR）本周在与国会幕僚的会谈中，承认正在筹备一份单独的紧急声明。不同 于其他贸易顺差国，巴西目前对美货物贸易为逆差。此前特朗普以《国际紧急经济权力法案》 ...