America always had, and should have a open border with Mexico. tear down that wall, Mr. Trump. Instead, what we NEED to do is to stop hiring illegal aliens. Punish those that do, it's that simple. And we should make it a necessity for employers to know their employee's immigration status. Not this silly hide and seek, whack a mole game credible denial game these cheap jack businesses play. Make it MANDATORY to verify someone's immigration status...why is THAT such a big issue? Not only would it be more effective, it would be cheaper than building a wall. Why doesn't Trump, Mr. Business man, see THAT?