Broad tariffs, they said, could have "unintended negative consequences to the USA economy and its workers", especially when lower corporate tax rates were making American companies more competitive in global markets.
"From what we understand, the motivation of the U.S.is an economic safeguard measure in disguise, not a national security measure", Malmstroem added.
Sanders says Trump will finalize the tariffs later this week.
"We are the freest trader in the world, hands down", White House trade adviser Peter Navarro told Bloomberg TV on Wednesday. It's fared better than the S&P and Dow over the last week as the companies on that index are far more US -focused and would stand to lose less from a flare-up in global trade tensions. "We cannot see how the European Union, friends and allies in North Atlantic Treaty Organisation, can be a threat to worldwide security in the USA", she said. "It's pointless talking in public about the ways you might retaliate until you have to act", said a second source familiar with the issue who spoke on the condition of anonymity.
"We've communicated clearly and candidly with the President, a man that I have come to know and we work together very well, to make sure that ongoing projects".
European Union industry commissioner Elzbieta Bienkowska, who is visiting Australia, said it was important to send a strong message supporting trade liberalisation.
Donohue says the tariffs would "directly harm American manufacturers" and lead to "widespread retaliation from our trading partners".
Beijing's steady accumulation of multibillion-dollar trade surpluses with the United States has prompted demands for import controls. "We must act soon!" They ship fewer exports of the metals to the US, with Germany accounting for about 4 percent of steel.
The proposed 25 per cent tariff on steel and 10 per cent on aluminum will have "unintended consequences" that will seriously impact jobs and local economies in both countries, the letter said.
A report from the Federal Reserve on Wednesday noted that four of the United States central bank's 12 districts saw a "marked increase" in steel prices due in part to a decline in foreign competition. In a tweet, he said the "U.S.is acting swiftly on Intellectual Property theft".
On Wednesday, the Dow Jones opened 300 points lower on the news that one of the few remaining sane people in the White House would be packing his bags and getting the hell out of there, the implication being that with Cohn gone, Trump's ill-begotten trade war would move ahead at full speed. "But things are not that simple as investors have to worry about a potential trade war with the U.S", he added. It's not inconceivable that others could be exempted on a similar basis,"Ross said in an interview".
States that have a lot of exposure to steel and aluminum imports could be hit particularly hard by the tariffs. Trump has been resisting calls to reverse his stance and has said he will impose tariffs in coming days.
President Donald Trump had a record-high turnover in senior staff his first year in office - and it's only getting worse. A visiting head of state, Swedish Prime Minister Stefan Lofven, said during a joint news conference with Trump that increased tariffs will hurt everyone in the long run.
Echoing Sanders, White House National Trade Council Director Peter Navarro told Fox Business Wednesday night that Canada and Mexico could be sheltered from the tariffs provided they meet USA demands in renegotiating NAFTA.
Like Stephen Miller on immigration, Navarro has now become the face of Trump's trade plan. "And if we get that, all's good with Canada and Mexico".