I question his motives after hearing some of the statements he has made and the virtual fence fiasco. The fence will have a positive impact on the environment if it keeps millions of illegals and their filthy garbage away from our border.
I am sure they will find a pug-nosed gollywhopper or something which requires heaps of discarded clothing, backpacks, and trash, in which to breed and rear its young.
Of course, it will be "endangered".