Daniel William Lipinski is an American politician and the U.S. Representative for Illinois's 3rd congressional district, serving since 2005. He is a member of the Democratic Party. The district includes much of the southwest side of Chicago, along with several nearby suburbs. Lipinski, known for working with Republicans on legislation, is a member of the Blue Dog Coalition. He is strongly protectionist on U.S. trade policy and aligned with the Christian right on abortion, embryonic stem cell research, and taxpayer spending on private education.