Creating policy by temper tantrum
and I think you could include willful ignorance, as well.
From Paul Krugman in the NYT.
"In one way, Donald Trumps attack on our foreign trade partners resembles his attack on immigrants: in each case, the attack is framed as a response to evildoing that exists only in his imagination. No, there isnt a wave of violent crime by immigrants, and MS-13 isnt taking over American towns; no, the European Union doesnt have horrific tariffs on U.S. products (the average tariff is only 3 percent).
In another way, however, the trade crisis is quite different from the humanitarian crisis at the border. Children ripped from their parents and put in cages cant retaliate. Furious foreign governments, many of them U.S. allies that feel betrayed, can and will.
But all indications are that Trump and his advisers still dont get it. They remain blithely ignorant about what theyre getting into...."
https://www.nytimes.com/2018/07/02/opinion/trump-trade-war.html?action=click&pgtype=Homepage&clickSource=story-heading&module=opinion-c-col-left-region®ion=opinion-c-col-left-region&WT.nav=opinion-c-col-left-region