Trump would be first to use emergency law to levy tariffs

Threatening to slap tariffs on all goods imported from Mexico starting in June - unless the Mexican government makes major strides to slow the flow of illegal immigrants into the United States - President Donald Trump would become the first President to employ tariffs as part of an emergency economic sanctions measure passed by Congress in 1977.

Known as the "International Emergency Economic Powers Act" or IEEPA, the law has mainly been used to freeze assets, block foreign exchange transactions, and stop people from entering the United States, in order to limit economic activity as a broader foreign policy punishment - focusing mainly on rogue nations, rather than neighbors and allies.

"In general, IEEPA has served as an integral part of the postwar international sanctions regime," the Congressional Research Service wrote in a paper on the law earlier this year.

"No President has used IEEPA to place tariffs on imported products from a specific country or on products imported to the United States in general," the nonpartisan research report stated.

"This is a misuse of presidential tariff authority and counter to congressional intent," said Sen. Charles Grassley (R-IA), as some experts were skeptical about the law being used for tariffs on Mexico.

"I don't read IEEPA as a clear delegation of power to impose tariffs," said Jennifer Hillman, a Georgetown University law professor. "Probably why no President has ever used IEEPA to impose tariffs.”

"To invoke IEEPA, Trump will have to issue an executive order declaring a national emergency, and further declaring illegal immigration to be 'an unusual and extraordinary threat” to 'the national security, foreign policy, or economy of the United States,'" wrote Elizabeth Goitein of the Brennan Center for Justice.

"This is clearly an enormous abuse of IEEPA," said Edward Alden, a senior fellow at the Council on Foreign Relations. "But who will stop him? The courts? The Congress?"

But others argue the language of the IEEPA - and the broad 'emergency' powers granted by Congress - leaves the field wide open for President Trump to act unilaterally on trade, whether against Mexico or any other nation.

"After all, IEEPA was not enacted with anything like Trump’s commercial crusade in mind," wrote a group from the Peterson Institute for International Economics.

"To be sure, Trump's IEEPA tariffs would be vigorously challenged as a massive usurpation of the congressional power 'To regulate Commerce with foreign Nations,'" the writers added - in a paper which was written in September of 2016 - basically predicting such a trade move before Mr. Trump was even elected.

"IEEPA grants broad statutory authority, so may be hard to challenge Trump's IEEPA tariffs in court," said Simon Lester of the CATO Institute, who noted on Twitter that Congress could still block the move.

But Congress has taken no steps to stop any other move by President Trump when it comes to import duties.

"How many times will Congress let the president unilaterally raise taxes on Americans?" asked Rep. Justin Amash (R-MI).

"All the times," he said.

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