This document provides an overview of equal protection and civil rights under the US Constitution. It discusses key Supreme Court cases that have shaped equal protection law, such as Loving v. Virginia which ruled against laws banning interracial marriage, and Brown v. Board of Education which ended racial segregation in public schools. The document also examines how equal protection has expanded over time to prohibit discrimination based on sex and other attributes. While progress has been made, it concludes that more work remains to fully achieve equal treatment under law for all Americans.