Native born implies born on U.S. soil. Actually, they can be born anywhere in the world, as long as they were considered a U.S. citizen at birth.
I won't get too deep into it, but there are some people who don't agree with that assessment of what it means to be a "natural-born citizen" of the United States. It's not necessarily about politics per se, but there was a certain Canadian born American politician who ran for POTUS.
There's no current definition of a "natural-born" Canadian citizen for someone born after the current law went into effect, but there was previously, and I understand that the laws are still in force for anyone born at that time it was in effect. Not sure what good it would do since Canada doesn't seem to have legal restrictions on naturalized citizens in political office (like minimum citizenship and residency requirements). Also being born abroad but entititled to Canadian citizenship also required registering before turning 22. And on top of that it was discriminatory against Canadian mothers, who didn't transmit citizenship unless the child wasn't born in wedlock.
PART l.
Natural-Born Canadian Citizens.
4 . A person, born before the commencement of this Act, is a natural-born Canadian citizen:—
(a) if he was bom in Canada or on a Canadian ship and has not become an alien at the commencement of this Act; or
It he was born outside of Canada elsewhere than on a Canadian ship and his father, or in the ease of a person bom out of wedlock, his mother
(i) was born in Canada or on a Canadian ship and had not become an alien at the time of that person's birth, or
(ii) was, at the time of that person’s birth, a British subject who had Canadian domicile,
if, at the commencement of this Act, that person has not become an alien, and has either been lawfully admitted to Canada for permanent residence or Is a minor.
5. A person, born after the commencement of this Act, Born
( b )
is a natural-born Canadian citizen:—
(a) if he is born in Canada or on a Canadian ship;
or
( b ) if he is born outside of Canada elsewhere than on a
Canadian ship, and
(i) his father, or in the case of a child born out of wedlock, his mother, at the time of that person’s birth, is a Canadian citizen by reason of having been bom in Canada or on a Canadian ship, or having been granted a certificate of citizenship or having been a Canadian citizen at the commencement of this Act, and
(ii) the fact of his birth is registered at a consulate or with the Minister, within two years after its occurrence or within such extended period as may be authorized in special cases by the Minister, in accordance with the regulations.
6. Notwithstanding anything contained in section four or section five of this Act, a person who is, at the commence ment of the Act, a minor born outside of Canada elsewhere than on a Canadian ship and who has not been lawfully admitted to Canada for permanent residence, or who is bom after the commencement of this Act and outside of Canada elsewhere than on a Canadian ship, shall cease to be a Canadian citizen upon the expiration of one year after he attains the age of twenty-one years unless after attaining that age and before the expiration of the said year
(a) he asserts his Canadian citizenship by a declaration of retention thereof, registered in accordance with the regulations; and
( b ) if he is a national or citizen of a country other than Canada under the law of which he can, at the time of asserting his Canadian citizenship, divest himself of the nationality or citizenship of that country by making a declaration of alienage or otherwise, he divests him self of such nationality or citizenship:
Provided that in any special case the Minister may extend the time during which any such person may assert Ms Canadian citizenship and divest himself of the other nationality or citizenship, in which case upon so doing within the said time he shall thereupon again become a Canadian citizen.