"Under the Immigration and Nationality Act, foreign nationals seeking entry into the United States undergo a vetting process to ensure that they satisfy the numerous requirements for admission." "The Act also vests the President with authority to restrict the entry of aliens when- ever he finds that their entry “would be detrimental to the interests of the United States.” 8 U. S. C. §1182(f)."
" Relying on that delegation, the President concluded that it was necessary to impose entry restrictions on nationals of countries that do not share adequate information for an informed entry determination, or that otherwise present national security risks. Presidential Proclamation No. 9645, 82 Fed. Reg. 45161 (2017) (Proclamation)."
"The (Hawaiian) plaintiffs in this litigation, respondents here, challenged the application of those entry restrictions to certain aliens abroad. We now decide whether the President had authority under the Act to issue the Proclamation, and whether the entry policy violates the Establishment Clause of the First Amendment."
Hmmmm.....the ban is way overdue but I’m not in favor of any legislation which delegates so much to the Chief Executive