Amid increasing tensions between Washington and Beijing over economic and security matters, Chinese President Xi Jinping was in Florida last week for meetings with President Trump. Although economic frictions between the world’s two largest economies are nothing new, the safeguards that have helped prevent those frictions from sparking an explosion and plunging the relationship into the protectionist abyss may no longer be reliable.

As I noted in this recent Cato Free Trade Bulletin: 

Never have the U.S. and Chinese economies been more interdependent than they are today. Never has the value of the bilateral trade and investment relationship been greater. Never has the precarious state of the global economy required comity between the United States and China more than it does now. Yet, with Donald J. Trump ascending to power on a platform of nationalism and protectionism, never have the stars been so perfectly aligned for the relationship to descend into a devastating trade war.

What are those safeguards and why might they no longer be reliable?

First, U.S. multinational business interests that used to favor treading lightly with China, and provided a policy counterweight to U.S. import-competing industries advocating protectionism, have grown disillusioned by the persistence of policies that continue to impede their success in Chinese markets. Many think a more aggressive posture from Washington, even if that makes matters worse for them in the short run, is overdue.

Second, the pro-China-trade lobbies in Washington have grown sheepish in their advocacy on account of an economic study that went viral last year, ascribing massive U.S. jobs losses to trade with China, and because many fear political retribution from challenging Trump’s assumptions.  Full-throated support for the relationship has become conditional support.

More so than at any time since 1989, there is political “appetite” for a trade war.