...Planned Parenthood sees ideological purity as so paramount that it permeates every aspect of its strategic planning. There is almost no room for even slight deviations. Those who are not in lock step with the organization are viewed as enemies to the cause.

This mind-set will doom Planned Parenthood to failure. When an organization is willing to support only lawmakers who are with it 100 percent of the time, it virtually guarantees that the debate will be bitterly partisan...

[Republican Senator Susan Collins] once had close ties to the group. Planned Parenthood endorsed her in 2002 because of her strong record of votes supporting abortion rights. Yet in her 2008 campaign, Planned Parenthood turned on her. The issue was her vote to confirm Justice Samuel A. Alito Jr. to the Supreme Court. While the vote was a challenging one for Senator Collins, she says she came to it after speaking with Mr. Alito about his respect for precedent and whether he considered Roe v. Wade settled law. (Senator Collins has since also voted to confirm Justices Sonia Sotomayor and Elena Kagan.) Ms. Collins was acting in the traditional (and admirable) spirit of the Senate, which tends to confirm judicial nominees unless the person is clearly unqualified.