General Discussion
In reply to the discussion: If Ted Cruz wasn't born in the US, why's he still running for pres and why is the media letting him? [View all]DhhD
(4,695 posts)birth in Canada and for up to about two years of age, since they immigrated back with Cruz's Canadian birth certificate when he was about 6 years old. Back then there was a time cut-off to get the Canadian papers and the N-600 form in the US Embassy Offices.
It is going to depend on the dates of the filings. Here is one source of information that one would have to pay for.
https://shusterman.com/acquistionofuscitizenship.html
snip
The laws regulating acquisition of U.S. citizenship at birth are among the most complex of the immigration laws. Adding to the complexity, Congress has significantly amended these laws on a number of occasions, in 1934, 1940, 1952, 1978, 1986 and 1994.
more at link
There must be plenty of retired N-workers that used the Form N-600. The question is did Teddy's Mother file all the paperwork and on time? Now the Form N-400 is must easier and quicker for those born more recently.