From this response to the 48 Pro-Choice politicians by then Archbishop Levada found here
http://www.usccb.org/bishops/reflections.shtml
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**In the letter the Members of Congress raise their concerns about being singled out for their stance on abortion, their “pro-choice” position, while their support for many other aspects of the social teaching of the Church places them on the side of “pro-life” concerns in a variety of ways: “If Catholic legislators are scorned and held out for ridicule by Church leaders on the basis of a single issue, the Church will lose strong advocates on a wide range of issues that relate to the core of important Catholic social teaching.”
It is important to clarify this important point. On the one hand one finds people who develop “scorecards” of Catholic teaching, on which a “pro-choice” politician who supports many important aspects of Catholic social teaching, but is pro-abortion, will get a “high” mark of 80% or 90% support for Catholic teaching. At the same time, a “prolife” politician who is also pro-death penalty, pro-Iraq war, etc., will be ranked “low” on a “support for Catholic teaching” index.
The implication here is that all Catholic teaching has the same “rank” in terms of its obligation upon the Catholic conscience**.
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It is true that the accusation of “single issue” politics is intended to marginalize the accused from the political mainstream of American life, where there are so many important issues of concern to the creation and maintenance of a just and beneficent society. Since the concern is raised about Catholics [and especially bishops] falling into the “single issue” trap, it might be useful to recognize the reality of our political choices. While most of us are concerned about a fairly broad range of issues, we tend to become particularly energetic about a few: environment, housing, health care, war and peace, abortion.
Parenthetically, since the letter was signed by 48 Democratic members of Congress, it may not be out of place here to recall a recent example of “single issue” politics offered by the Democratic presidential campaign. In the press reports about a rumored invitation to Republican Sen. John McCain to become a running-mate for Vice President on the Democratic ticket, **the single condition for acceptance by McCain was that he would guarantee he would not appoint any judge who would overturn the Roe v. Wade decision!
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Catholic social teaching covers a broad range of important issues. But among these the teaching on abortion holds a unique place. Not all moral issues have the same moral weight as abortion and euthanasia. For example, if a Catholic were to disagree with the Holy Father on the application of
capital punishment or on the decision to wage war, he would not for that reason be considered unworthy to present himself to receive Holy Communion. While the Church exhorts civil authorities to seek peace, not war, and to exercise discretion and mercy in imposing punishment on criminals, it may still be permissible to take up arms to repel an aggressor or to have recourse to capital punishment. **There may be a legitimate diversity of opinion even among Catholics about waging war and applying the death penalty, but not with regard to abortion and euthanasia.
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