So abortion is literally in play with BaconKing's resignation. Truly wondering if Cao will try to do something.
Kaiser has been nominated to the seat and he is hardly a pro-life vote if his past is any indication (the Lincoln 20 week ban was passed at a referendum over his objections). His confirmation is the purview of the Lincoln General Court. I can't speak for anyone else, but I personally will not make his views on this topic an issue as the Lincoln ban has already been challenged and upheld.
Yes, the President has a final veto at the very end of the process, but I'm not aware of any case in which that has actually been used.