Obama has so many areas of doubt and potential conflict in this regard that it's difficult to know where to begin. The reality is so wacky it beggars belief, which has been used to advantage to discredit opposition and to confuse the public.
Obama, Sr. can plausibly be claimed to have been an official of a foreign government while here as a student. His own citizenship is a tangle due to the dissolution of the British Empire, but the upshot of it all means that the UK claimed sovereignty at birth upon the individual known today as Barack Hussein Obama, due to his being born to a subject, yes they were still subjects then.
Then we have his adoption, introducing another foreign claim of sovereignty. Then, the passport kerfluffle. There's so much spin and obfuscation there, so much misdirection over that one. I think he just got an Indonesian passport and traveled under it, which became a problem once it was determined he was running for President, then came the wild disinfo campaign.
Then, the foreign student thing, smoke there too, all records sealed.
Obama was not natural born eight ways from Sunday, imho, regardless of where he came into this world.
Canada made NO claims on him and he made NO claims on Canada.
Conversely, Obama’s life was a convoluted mess of claims as to lineage and allegiance.
End of story
As an aside, Stephan Harper is Clearly an Canadian through and through, but I would vote for him as US President in a heartbeat over Barack Buttstain Obama.
God Speed Ted Cruz.