I believe the subject was Trump's claim that illegal immigrants cost us about 200 billion dollars a year.
Here's what you linked, a National Review piece
What Does the National Academies’ Immigration Report Really Say?
By GEORGE J. BORJAS
September 22, 2016 11:30 PM (Take note of date)
You linked a contributor at the National Review using 20 year old data to explain a current problem.
Who falls for sht like that? Borjas is an expert on the subject, certainly he didn't need to cherry pick
data to make his point.