“Up to the states” is the answer, because abortion appears nowhere in the Constitution.
That is, if you believe in the Constitution.
States already SURRENDERED to the tyrants in black on that one, chief.
The Constitution says that its purpose is to “secure the Blessings of Liberty to ourselves and our posterity.” Who do you think our posterity is composed of?
And, the Fifth and Fourteenth Amendments make it clear that innocent persons cannot be killed. Unborn babies are persons. Those who disagree, agree with Judge Blackmun, the author of Roe.