At any rate, as long as Kerry insists on calling himself "Catholic" and showing up at Catholic Masses to receive Catholic sacraments, he is under the moral obligations and duties binding all Catholics. In addition, he should familiarize himself with the legal and constitutional objections to the Roe vs. Wade decision by the nefarious SCOTUS. Not all thinking men agree that the Constitution enshrines a "right" to an abortion. The debate, of course, will continue for a long time.
Interesting philosophical twists.