Cruz could have got by running the photo once with at the most a slap on the wrist from whoever owned the rights to the photo.
So why buy the rights?
My guess is because he planned to run it over and over.
What Trump had better do is find out if he has bought the rights to any others.
My guess is that during the time when these photo sessions are in session, there are lots of photos taken, some of which the model intends to be destroyed: bad pose, unintentional exposure, whatever.
Trump should try to find out of any exist and who has them.
No wonder Cruz is so unpopular among those who know him best.
And we were gullible enough to think that it was for his politics alone.
I would not put that past him, either.