Nor do I. But, no one with access and the ability to know has claimed this was "unfettered domestic spying." You're only hearing that from partisans. The same ones who, when asked point blank, don't know if the President broke the law and also do not specifically ask the program to be shut down.
Saying the President
could be using his power to do wrong is different than making a specific allegation that he has. And, I would argue that to do the former in a partisan attack -- that results in damaging a vital intelligence asset during a time of conflict is unpardonable.