US Trade Rep Jamieson Greer:
"We must move away from an economy based solely on the financial sector and government spending, and we must become an economy based on producing real goods and services".
Peter Navarro is following his policy paper "The Case for Fair Trade" and the guy is bang on when it comes to unfair trade practices. "The stark lesson of this chapter is that America gets fleeced every day in the global marketplace both by a predatory Communist China and by an institutionally unfair and nonreciprocal WTO".
He also has a 2011 book "Death by China" (movie in 2012?) I've never looked into.
But... they went after him and he was in prison for bit.
I have to laugh "Navarro described Musk as a 'car assembler,' and claimed his Tesla vehicles required parts manufactured in foreign countries including China, Japan, and Taiwan."
"He's a car person. That's what he does, and he wants the cheap foreign parts."
So that has pissed off Elon.
you are right, they want to screw things together as assemblers. When you start getting into fumes, heat, smoke and glowing materials suddenly its too hard to control some pristine lean good looker operation
elon going to be pickling brackets as they fall off the forge, suit might get dirty 
anything more complicated then a ez bake oven
Tariffs fail to address the real problem - that Wall Street and corporations place profit above all else, above the people, above the nation.
Outsource and globalize- to the demise of your own country. It's been going on for decades. I'm glad things are being busted up, like the bull in the china shop lol that Trump is.
“If you go to his Texas plant, a good part of the engines that he gets, which in the EV case is the batteries, come from Japan and come from China, the electronics come from Taiwan,” Navarro said.
“The thing that’s, I think, important about Elon to understand, he sells cars. That’s what he does,” he said during an interview. “He’s simply protecting his own interests, as any businessperson would do.”
“He’s got X, he’s got a big microphone; we don’t mind him saying whatever he wants,” Navarro added.