Applicable case law,legal argument and facts to support citizenship claim of a child of a diplomat on limited immunity

You need to start by reading the applicable sections of the Immigration and Nationality Act and accompanying Federal Regulations. From there, you will need to see if there is applicable case law. This is a situation where you really should consider consulting an attorney. You can find more information about citizenship at birth at http://myattorneyusa.com/the-citizenship-clause-and-jus-soli-citizenship-citizenship-by-birth-in-the-united-states.