All except the clear and concise words in the Constitution which you seem to disdain.
Lawyers who except payment to produce opinions that suit their customers needs are clearly biased don't you think?
If the situation were exactly reversed with Trump and Cruz, which side would you be on, and try and be honest.
The Constitution does NOT define “natural born”. The only distinctions using those words in the Constitution are between “citizens” in general and “naturalized citizens”. One who is not naturalized, yet a citizen, one who is born a citizen of the US, is a natural born citizen.
I don’t care who you are talking about...even if Trump had been born in Germany, where his family came from, after his father was a US citizen, he would be a natural born citizen.