Doesn’t stop Obama. How do you figure immigrants have our first amendment rights?
While illegal immigrants do not enjoy all of the rights granted to citizens by the Constitution, specifically the rights to vote or possess firearms, these rights can also be denied to U.S. citizens convicted of felonies. In final analysis, the courts have ruled that, while they are within the borders of the United States, illegal immigrants are granted the same fundamental, undeniable constitutional rights granted to all Americans.
http://usgovinfo.about.com/od/rightsandfreedoms/a/illegalrights.htm