“So, it is settled law. President Trump can deny foreign nationals entry to the country. He should immediately issue a Presidential Proclamation suspending the entry of foreign nationals from Mexico, Caribbean, Central, and South American countries until such time as he finds the detrimental effects of illegal immigration from these regions have been curtailed and our border is secure. These areas are home to the violent and dysfunctional countries that export the vast majority of illegal immigrants to America.”
https://www.freerepublic.com/focus/f-news/3666331/posts
You forgot China and India.