After talking to mayors and law enforcement on the Texas-Mexico border, Bush said, “What they said is a wall doesn’t work. It just doesn’t work. You can’t build a wall on the rugged terrain that exists there.”

He continued, “What Donald Trump is proposing is a wall that can’t be built. And if it was to be built it would be hundreds of billions of dollars. He wants everybody to be deported which will tear family life asunder, would cost an arm and a leg, hundred of billions of dollars again and it will probably be unconstitutional.”