He is betraying the constitution by subverting it. He would be the first ever foreign born POTUS. He would open the door for even further subversion in future elections.
Some say yes, some say no. I say that in cases like this, the courts should take a strict and narrow view of the Constitution, and so should rule that Cruz is not natural-born.
I say that reluctantly, because from my point of view Cruz has many good qualities. And I'm quite sure that the courts will not agree with me.
Circular argument. He cannot subvert the definition of NBC given in the Constitution because no such definition is found in the Constitution.
Peace,
SR