Jorge Castaneda, a former foreign secretary of Mexico, admitted that President Donald Trump could force these invaders to build a wall. Here is an excerpt from the Weekly Standard.
"If [Trump] really wants Mexico to pay for the wall, he has many ways of getting many Mexicans to pay for the wall," Castañeda said in an auditorium sitting directly across the street from Trump's newly opened Pennsylvania Avenue hotel.
Castañeda also suggested that Trump could tax remittances from the U.S. to Mexico: "There are ways of doing it," he said, "transaction fees, commissions, special fees etc." He labeled a recent resolution in the Mexican Senate to bar the use of Mexican federal funds for construction of the wall as "silly." (Somebody tell Castañeda's old boss!
These Mexican nationals send a lot of money back to their country. That is where you hit them and you hit them hard.