The Tower amendment was rejected, but it led to widespread misunderstanding of Title IX as a sports-equity law, rather than an anti-discrimination, civil rights law. While Title IX is best known for its impact on high school and collegiate athletics, the original statute made no explicit mention of sports. The United States Supreme Court also issued decisions in the 1980s and 1990s, making clear that sexual harassment and assault is a form of sex discrimination. In 2011, President Barack Obama issued guidance reminding schools of their obligation to redress sexual assaults as civil rights matters under Title IX. Obama also issued guidance clarifying Title IX protections for LGBT students through Dear Colleague letters.