What actually reduces abortions

One of the questions at the heart of the "how should pro-lifers vote?" debate is whether the package of policies endorsed or proposed by Candidate X is likely to reduce the number of abortions.  (As I've suggested before, I think the "abortion issue" is about moving away from an unjust legal regime, and not just reducing the number of abortions, but let's put that aside for now.)  For those who are basing their decision, entirely or in part, on this abortion-reduction question, this essay, at the USCCB's web site, by Richard Doerflinger, seems like a must-read.  A taste:

In 1980 the Supreme Court upheld the Hyde amendment, and federally funded abortions went from 300,000 a year to nearly zero. With its decisions in Webster (1989) and Casey (1992), the Court began to uphold other abortion laws previously invalidated under Roe. States passed hundreds of modest but effective laws: bans on use of public funds and facilities; informed consent laws; parental involvement when minors seek abortion; etc.  Dr. Michael New's rigorous research has shown that these laws significantly reduce abortions. In the 1990s, debate on partial-birth abortion - kept in the public eye, ironically, by President Clinton's repeated vetoes of a ban on this grisly late-term procedure - alerted many Americans to the violence of abortion and shifted public attitudes in a pro-life direction, just as growing concern over AIDS and other sexually transmitted diseases was giving new force to the abstinence message for teens. Now the Court has upheld a partial-birth abortion ban, and signaled that other laws to save unborn children and their mothers from the horrors of abortion may be valid. If Roe is reversed outright, that will allow more laws that can further reduce abortions.

By contrast, a pending federal "Freedom of Choice Act" (FOCA) would knock down current laws reducing abortions, and require public programs for pregnant women to fund abortion. No one supporting that bill can claim to favor reducing abortions.