国际英语资讯:Spotlight: U.S. scholars, business groups question legality of proposed tariffs on Mexico_时事

国际英语资讯:Spotlight: U.S. scholars, business groups question legality of proposed tariffs on Mexico

"It was never intended to give the president carte blanche authority to impose tariffs on close allies," Alden wrote in a blog post on Friday, noting that using IEEPA to justify tariffs is "a flagrant abuse of the congressional statute."

"If the Congress lets Trump get away with this, he will be free to slap tariffs on any country or any product at any time for whatever reason he dreams up," he argued, adding that the president's decision to link trade to immigration and refugee concerns is an "especially dangerous escalation."

Markets will realize that it's not likely for the U.S. president to deliver a trade deal with its trade partners if tariffs can be raised by "unilateral presidential decree," linked to border policy not the economic relationship, said Adam Posen, president of the Peterson Institute for International Economics.

Analysts and lawmakers have also argued that the proposed tariffs on Mexican goods could violate the rules of the North American Free Trade Agreement (NAFTA) and World Trade Organization (WTO).

"This decision also threatens to upend 25 years of duty-free treatment for products that cross the U.S.-Mexico border, and violates longstanding American commitments under NAFTA and at the World Trade Organization," Republican Senator Pat Toomey of the state of Pennsylvania said in a statement.

"The president's use of tax hikes on Americans as a tool to affect change in Mexican policy is misguided. It is past time for Congress to step up and reassert its Constitutional responsibility on tariffs," Toomey said.