According to a recent New York Times article, “the Congressional Research Service has withdrawn an economic report that found no correlation between top tax rates and economic growth, a central tenet of conservative economic theory, after Senate Republications raised concerns about the paper’s findings and wording.”
The Congressional Research Service is a nonpartisan arm of the Library of Congress that works exclusively for the U.S. Congress, providing policy and legal analysis to committees and Members. You can find other CRS reports at http://www.cq.com/crs.0 (on-campus) and http://0-www.cq.com.hopac.uchastings.edu/crs.0 (off-campus). You can browse reports by category (abortion, agriculture, animals, etc.) or use the advanced search option to search for reports by keyword.
Please ask at the Reference Desk if you have any questions!