This document provides an overview of Key Concept 9.1 from the APUSH review which discusses the rise of conservatism in the United States after 1980. It notes that Ronald Reagan's 1980 election marked a milestone that advanced conservative beliefs and policies. During this time, conservatives enacted tax cuts and deregulation of industries. They also sought to limit liberal programs, though faced resistance. Key policy debates of the time included issues of free trade agreements, the scope of the government social safety net, and financial system reforms.