alstewartfan: “Ted was bequeathed citizenship UNLESS his mom formally renounced her American citizenship.”
It isn’t as simple as you state. That is not the ONLY condition for Cruz’s US citizenship. His mother had to register Cruz in the US after his birth. He actually had to reside in the US for a particular amount of time prior to granting citizenship. If Cruz had been born to an American mother and Cuban father as he was in Canada and he never resided in the US until after his 18th birthday, he would not even be a US citizen! So you see that having a single parent citizen in a foreign birth was insufficient by itself to acquire US citizenship.
And an interesting point you should know is that the citizenship laws through the past have changed the qualifications for aliens born abroad to attain citizenship. And NONE of these were identified as UNCONSTITUTIONAL!
Do you think the definition of NBC has changed since the Constitution was written? If so, in what way(s)?
Not so. He'd be a citizen of the US if he lived in Canada his while life. The statute that grants him naturalized citizenship doesn't impose a residency requirement on the new citizen. It used to. See 8 USC 1401(g)
The citizen parent has to meet residency requirements prior to the birth. Ted's US citizen mother met those, no reasonable doubt on that.
Ted Cruz is a full-fledged naturalized US citizen. As a naturalized citizen, he is not eligible to hold the offices of president or vice-president.