Ted Cruz had memorized the Constitution by the age of 14.He has dedicated much of his life to that Constitution.
As Solicitor General for the State of Texas,he put together the 32 states and filed the Amicus brief that led to the Heller Decision.
He has argued,and won,a number of cases before SCOTUS.
One of them involved a person here illegally from Mexico.This person committed some horrible murder in theState of Texas,was tried,convicted,and sentenced.
Mexico asked George Bush to send him back to Mexico,so they could keep him.
Pres Bush agreed.
Ted Cruz said "NO! He committed crimes against citizens of Texas,he was tried and convicted in Texas,and he will serve his sentence in Texas!".
Cruz defied George Bush,took him to the SCOTUS,and beat him.
Cruz is renowned for his debate skills.Did you notice NO ONE faced him in one on one debate in the primaries?
That debate skill matters arguing cases.
And Cruz has some special gift of memory.Its like photographic memory,but with spoke words.
He is not just another DC politician.
On the campaign trail,when some reporter stuck a mic in his face and asked about the LGBT marriage decision,Cruz's response reflected the 10th Ammendment.He said (paraphrasing) " I am unaware of any part of the Constitution giving the Federal Government the power to define marriage.It seems more appropriate to the States"
Regardless of whether we agree,he took a Constitutional approach to answering.
That is what I want in a SCOTUS Justice.