For as long as US foreign aid has enjoyed bipartisan support on Capitol Hill, lawmakers have sought to ensure this assistance is transparent, accountable, and effective. Thanks, in part, to passage of the Foreign Aid Transparency and Accountability Act (FATAA) in 2016, US agencies involved in implementing US foreign assistance have been at the forefront in implementing requirements related to the timely publication of project-level data and in the development, implementation, and use of evaluations. Signed into law in 2019, the Foundations for Evidence-Based Policymaking Act (Evidence Act) sought to integrate the use of evidence—including data and evaluation—into decision-making across the federal government.