Here is part of that discussion about children of illegal immigrants:

In 1898, the Supreme Court in United States v. Wong Kim Ark declared that the Fourteenth Amendment adopted the common-law definition of birthright citizenship. Chief Justice Melville W. Fuller’s dissenting opinion, however, argued that birthright citizenship had been repealed by the principles of the American Revolution and rejected by the framers of the Fourteenth Amendment. Nonetheless, the decision conferred birthright citizenship on a child of legal residents of the United States. Although the language of the majority opinion in Wong Kim Ark is certainly broad enough to include the children born in the United States of illegal as well as legal immigrants, there is no case in which the Supreme Court has explicitly held that this is the unambiguous command of the Fourteenth Amendment.

Based on the intent of the framers of the Fourteenth Amendment, some believe that Congress could exercise its Section 5 powers to prevent the children of illegal aliens from automatically becoming citizens of the United States. An effort in 1997 failed in the face of intense political opposition from immigrant rights groups. Apparently, the question remains open to the determination of the political and legal processes.

http://www.heritage.org/Research/Gov...form/wm925.cfm

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if an american couple is on vacation in another country and they have a baby born while visiting...the baby is not a citizen of that country it was born in but it is still an american citizen....that is how we should treat it

 

if an american couple is on vacation in another country and they have a baby born while visiting...the baby is not a citizen of that country it was born in but it is still an american citizen....that is how we should treat it

 

not so---it has dual citizenship; if a couple were in England, the baby would have both English and US citizenship---and would declare which one at 18.

General Information: Dual citizenship means that an individual is a citizen of two countries at the same time. It is also possible to be a citizen of three or more countries. However, every country has its own laws regarding dual citizenship. Some countries allow it, others do not, while some have no particular laws regarding dual citizenship. Dual citizenship is not something that can be applied for. It is a process that happens when a person becomes a citizen of another country, in addition to his or her country of birth. Dual citizenship occurs automatically to some individuals, for example: a child is born in the United States to foreign parents. In this example the child is automatically a citizen of the United States and a citizen of its parent's home country. The same applies to children of U.S. citizens born abroad where the child is both a U.S. citizen and a citizen of the country of birth.

from this website:
http://www.usimmigrationsupport.org/...tizenship.html