The left wonders why the president can’t see the folly of a trade war

Who wins a trade war? It won't be the American worker. A roundup of editorials Monday takes a look at the issue.
Opinions from the left:
From Bloomberg: Why are we having to tell the president that a trade war is bad?
We have large trade deficits with Mexico and Canada. NAFTA, which is under renegotiation right now, has been a bad deal for U.S.A. Massive relocation of companies & jobs. Tariffs on Steel and Aluminum will only come off if new & fair NAFTA agreement is signed. Also, Canada must..
— Donald J. Trump (@realDonaldTrump) March 5, 2018
Trade War, What Is It Good For? Absolutely Nothing
From columnist Paul Krugman: There is only one word for an impending trade war – stupid.
We are on the losing side of almost all trade deals. Our friends and enemies have taken advantage of the U.S. for many years. Our Steel and Aluminum industries are dead. Sorry, it’s time for a change! MAKE AMERICA GREAT AGAIN!
— Donald J. Trump (@realDonaldTrump) March 5, 2018
From the Minneapolis Star Tribune: The president doesn’t need to protect us from our own economy.
The right points out that new gun control measures do nothing to really solve the problem.