Containers are loaded at the Port of New Orleans' Napoleon Avenue Container Terminal. 

Career diplomat and Louisiana native Maxwell J. Hamilton went home recently to answer this question: Louisiana depends on foreign trade, so why did voters elect Trump?

He writes about his findings in an opinion piece for the Dallas Morning News.

"As an American diplomat, I am part of the foreign policy establishment that created and promoted an open global economy since World War II," Hamilton writes. "But Trump's decisive win in my home state made me question whether this system still reflected the interests of Americans at home."

Hamilton met with conservative farmers and business owners, state officials and others to try to unravel the true preferences of red state Americans when it comes to global trade.

Read the complete opinion piece here.