But if he hasn't been convicted yet of anything...
S-A-Y-Y-Y-Y-Y-Y-Y!
I don't think that even the magic negro's magic pen can issue an open "Future Pardon."
Sadly, the presidential pardon authority is such that in past, even after a president leaves office, congress has behaved like he created “pocket pardons” for everyone in his administration, for any crimes they committed during his presidency.
Though this is a loathsome practice, Republicans figure that if they start prosecuting all the former Democrat cabinet officers who committed heinous crimes, when next the Democrats are in office, they will prosecute all sorts of Republican apparatchiks, for any or no reason, just to get even.
It is one of the few remaining “niceties” that the Republicans and the Democrats still keep. Mutually Assured Pardons.
However, conservatives could definitely rock this boat if they get control over the Republican party, the end result being a lot of Democrats going to the big house. Just another reason that both the Democrats and GOP-e are terrified of them.
You have to admit that seeing people like Holder, Sebelius, James E. Hansen, et al., wearing prison jumpsuits, would have a cathartic effect on society.