Good thread of thoughts from an actual wall expert:

From Amy Patrick, an engineer, Wall Expert.

I’m a licensed structural and civil engineer with a MS in structural engineering from the top program in the nation and over a decade of experience on high-performance projects…

— Randy #RESIST (@RandyResist) January 10, 2019

It’s going to be higher than $50bn. The contractors will hit the government with near CONSTANT change orders. “Cost overrun” will be the name of the game. It will not be completed in Trump’s lifetime….

— Randy #RESIST (@RandyResist) January 10, 2019