Jon O’Brien is president of Catholics for Choice, which believes that the individual conscience should be the keystone for moral decision-making on reproductive rights matters and that affordable contraception should be available to all.

Ann Stone heads Republicans for Choice in Alexandria, Va., which says its aim is to remove politics from the abortion debate.

Planned Parenthood Federation of America fights against legislation that limits access to abortions. Contact the media office.

Debra Ness is president of the National Partnership for Women and Families, a nonprofit, nonpartisan organization in Washington D.C., that works to promote quality health care for women, including access to abortion. Contact communications assistant Cindy Romero.

Alexander C. Sanger, grandson of reproductive rights activist Margaret Sanger, is chairman of the International Planned Parenthood Federation. He wrote Beyond Choice: Reproductive Freedom in the 21st Century (Public Affairs, 2004).

Allan Sawyer is president of the American Association of Pro Life Obstetricians and Gynecologists, headquartered in Holland, Mich.

Troy Newman is president of Operation Rescue. The organization is known for buying and subsequently closing an abortion clinic in Wichita, Kan., and it now uses the building as its headquarters.

Penny Young Nance is CEO and president of Concerned Women for America, a women’s group committed to bringing biblical principles into all levels of public policy.

Deirdre McQuade is assistant director for policy and communications for the Pro-Life Secretariat of the United States Conference of Catholic Bishops.