The National Right to Life Committee has long been at the center of the anti-abortion movement in the United States. The committee began as a project of the National Conference of Catholic Bishops in 1968, but became an independent organization after the Supreme Court's Roe v. Wade decision in 1973. After Roe, the committee quickly established affiliates across the country and it continues to work with affiliates in nearly every state to advance state and federal legislation. One of the committee's greatest successes was the passage of the so-called "Partial-Birth Abortion Act" in 2003, which was upheld by the Supreme Court in 2007.