On April 9, 2026, government watchdog OpenTheBooks published a critical examination of the Congressional Budget Office (CBO), the nonpartisan agency tasked with scoring federal legislation. The report challenges the reliability and objectivity of America's primary fiscal scorekeeper, alleging systemic inaccuracies and ideological bias in major policy forecasts.
Established in 1974 to provide "objective, nonpartisan information" for congressional budget decisions, the CBO has become the authoritative voice on legislation costs. OpenTheBooks argues this authority is misplaced. According to their analysis from 1983 to 2024, while routine revenue forecasting maintained a 6% average absolute error rate, the agency has grown increasingly unreliable on landmark legislation—with self-reported error rates expanding in recent years.
The report identifies a pattern of "wildly incorrect" projections on major policy initiatives, particularly those with significant economic impact. OpenTheBooks contends CBO analyses have demonstrated consistent bias favoring Democrat-led "tax-and-spend policies," systematically underestimating costs of progressive legislation while overestimating expenses of conservative priorities.
Most concerning is the report's assertion that when "major benchmark legislation" requires scoring, CBO projections prove "dramatically off the mark," undermining their utility for informed policymaking.
The comprehensive report examines CBO's forecasting accuracy across four decades of legislative projections. OpenTheBooks—a nonprofit maintaining what it calls "the largest private database of public spending in human history"—compared CBO predictions against actual fiscal outcomes, documenting discrepancies in both revenue and spending projections.
This critique arrives as policymakers increasingly question institutional accountability in Washington. If the CBO—widely cited as the gold standard for fiscal analysis—regularly miscalculates major legislation costs while exhibiting partisan bias, Congress may be making trillion-dollar decisions based on faulty data.
While OpenTheBooks raises valid concerns about forecasting limitations, critics may note that economic prediction inherently involves uncertainty. The CBO routinely publishes self-evaluations acknowledging projection errors. However, the report's strength lies in correlating these errors with specific legislative agendas, suggesting the problem extends beyond statistical variance into methodological bias.
"Scoring the Scorekeepers" calls for greater skepticism toward CBO projections and enhanced transparency in how legislative costs are calculated. The report serves as a cautionary reminder that even "nonpartisan" institutions operate within political and methodological frameworks that shape their outputs—frameworks Congress should understand before using these scores to justify major policy decisions.
*Full report available at OpenTheBooks.com*
