All of the candidates - Trump, Clinton and Sanders - are wrong on trade. Most of the jobs we've lost were due to technological advances and automation, not trade agreements. And despite what any of the candidates say, those jobs aren't "coming back". We should focus on creating new jobs, not bringing old ones back.
Here is a calm, well-reasoned article on the subject...
https://www.foreignaffairs.com/artic...th-about-trade
(Note - you need to register in order to read the whole link for free.)
P.S. I support those anti-dumping levies against Chinese steel. Trade agreements set the rules. When a trading partner breaks the rules, hell yes we should retaliate. Chinese steel-making capacity is over 800 million tons a year. The US currently produces around 80 million tons - or 1/10 as much!