This opinon is not substatiated by the Federalist Society's own Statement of Purpose. From the Federalist Society Website.
Law schools and the legal profession are currently strongly dominated by a form of orthodox liberal ideology which advocates a centralized and uniform society. While some members of the academic community have dissented from these views, by and large they are taught simultaneously with (and indeed as if they were) the law. The Federalist Society for Law and Public Policy Studies is a group of conservatives and libertarians interested in the current state of the legal order. It is founded on the principles that the state exists to preserve freedom, that the separation of governmental powers is central to our Constitution, and that it is emphatically the province and duty of the judiciary to say what the law is, not what it should be.
Q. Does the Federalist Society take positions on legal or policy issues or engage in other forms of political advocacy?A. No. The Society is about ideas. We do not lobby for legislation, take policy positions, or sponsor or endorse nominees and candidates for public service. While overall the Society believes in limited government, its members are diverse and often hold conflicting views on a broad range of issues such as tort reform, privacy rights, and criminal justice.
http://federalist.wlu.edu/Text%20Documents/About_FedSoc.htm
See also http://en.wikipedia.org/wiki/Federalist_Society