Well, that's kind of the pickle Trump is in. If he pardons Manafort, then Manafort can no longer plead the Fifth, but I expect Trump doesn't understand that.
What if Bonespurs just commutes his sentence?
All good questions. What if Manafort is held in contempt for not answering a Grand Jury's questions after he loses 5th amendment protection?
Another pardon?
No matter what course Trump chooses, there are no good optics to be had, regardless of the massive effort he has launched to distort public opinion. And there's another trial coming right up. Plus Omarosa threatening the release of more tapes, Penn Gillette adding to that noise, Cohen about to say God-Knows-What, Roger Stone being fitted for a noose, and ... what is a poor beleaguered public servant to do?
Oh - right : revoke some meaningless security clearances! That'll keep the really bad news at bay for a few hours!
But then what?
Declare war on Monaco?