http://immigrationtounitedstates.org/589-immigration-act-of-1921.html
 
http://abcnews.go.com/Blotter/al-qaeda-kentucky-us-dozens-terrorists-country-refugees/story?id=20931131
 
http://www.breitbart.com/jerusalem/2017/01/30/exclusive-islamic-state-supporters-react-angrily-trumps-temporary-refugee-halt/
 
http://cis.org/plenarypower
 
The plenary power doctrine says …the rights that we enjoy as Americans living in America don’t apply to foreigners living in foreign countries who are trying to come here.
 
http://townhall.com/tipsheet/mattvespa/2017/01/29/yes-the-trump-executive-order-on-immigration-is-legal-n2278378
 
http://blog.constitutioncenter.org/2015/12/constitution-check-would-a-ban-on-all-muslims-entering-the-u-s-be-valid/
 
http://hotair.com/archives/2016/07/22/is-trumps-muslim-ban-actually-unconstitutional-oddly-enough-probably-not/
 
http://www.nbcnews.com/politics/2016-election/legal-scholar-trump-s-muslim-ban-may-be-constitutional-n484981
 
http://www.usnews.com/news/articles/2015/12/08/top-scholars-say-trumps-muslim-immigrant-ban-could-be-constitutional
 
https://archive.is/8WbnU
https://archive.is/lKQAA
https://archive.is/XabbV