Trump to ban immigration from middle-eastern shitholes

8 U.S. Code § 1182 - Inadmissible aliens

(f) Suspension of entry or imposition of restrictions by President

Whenever the President finds that the entry of any aliens or of any class of aliens into the United States would be detrimental to the interests of the United States, he may by proclamation, and for such period as he shall deem necessary, suspend the entry of all aliens or any class of aliens as immigrants or nonimmigrants, or impose on the entry of aliens any restrictions he may deem to be appropriate. Whenever the Attorney General finds that a commercial airline has failed to comply with regulations of the Attorney General relating to requirements of airlines for the detection of fraudulent documents used by passengers traveling to the United States (including the training of personnel in such detection), the Attorney General may suspend the entry of some or all aliens transported to the United States by such airline.

www.law.cornell.edu/uscode/text/8/1182

(a) Establishment of programThe Secretary of Homeland Security and the Secretary of State are authorized to establish a program (hereinafter in this section referred to as the “program”) under which the requirement of paragraph (7)(B)(i)(II) of section 1182(a) of this title may be waived by the Secretary of Homeland Security, in consultation with the Secretary of State and in accordance with this section, in the case of an alien who meets the following requirements:
 (12) Not present in Iraq, Syria, or any other country or area of concern

     (A) In generalExcept as provided in subparagraphs (B) and (C)—

        (i) the alien has not been present, at any time on or after March 1, 2011—

            (I) in Iraq or Syria;

            (II) in a country that is designated by the Secretary of State under section 4605(j) of title 50 (as continued in effect under the International                       Emergency Economic Powers Act (50 U.S.C. 1701 et seq.)), section 2780 of title 22, section 2371 of title 22, or any other provision of law, as a                  country, the government of which has repeatedly provided support of acts of international terrorism; or

           (III) in any other country or area of concern designated by the Secretary of Homeland Security under subparagraph (D); and

       (ii) regardless of whether the alien is a national of a program country, the alien is not a national of—

            (I) Iraq or Syria;

            (II) a country that is designated, at the time the alien applies for admission, by the Secretary of State under section 4605(j) of title 50 (as                         continued in effect under the International Emergency Economic Powers Act (50 U.S.C. 1701 et seq.)), section 2780 of title 22, section 2371 of                  title 22, or any other provision of law, as a country, the government of which has repeatedly provided support of acts of international terrorism;           or

            (III) any other country that is designated, at the time the alien applies for admission, by the Secretary of Homeland Security under subparagraph             (D).


       (D) Countries or areas of concern

          (i) In general

           Not later than 60 days after December 18, 2015, the Secretary of Homeland Security, in consultation with the Secretary of State and the Director              of National Intelligence, shall determine whether the requirement under subparagraph (A) shall apply to any other country or area.

           (ii) CriteriaIn making a determination under clause (i), the Secretary shall consider—

               (I) whether the presence of an alien in the country or area increases the likelihood that the alien is a credible threat to the national security of                    the United States;

               (II) whether a foreign terrorist organization has a significant presence in the country or area; and

               (III) whether the country or area is a safe haven for terrorists.