Is the Trump foreign policy back to the future?

"Make America great again." That phrase has been in our political ecosystem for 10 years now. But it's never been clear what time period in American history President Trump was referencing? Is it the 1980s? Or maybe the 1950s? What about further back, say the 1890s? As we enter the second year of Trump’s second term, is a 19th century presidency emerging?