This article discusses the issues and challenges faced by English Language Learners (ELLs) in public schools, particularly in Texas. It analyzes how standardized testing required by the No Child Left Behind Act has both positive and negative consequences, or "washback effects", for ELLs. While high-stakes testing is meant to improve outcomes for at-risk students like ELLs, it can also increase dropout rates, disproportionately place ELLs in special education, and cause school rankings to focus more on demographics than academic growth. Both quantitative and qualitative data are needed to fully understand the impact of standardized testing on ELLs.