The Ninety-Ninth Congress of the United States convened from January 3, 1985, to January 3, 1987. It was composed of the Senate and the House of Representatives, with significant events including the passage of the Tax Reform Act of 1986. This Congress was marked by a Republican majority in both chambers, reflecting the political landscape of the time. During this period, key issues included national defense, tax policy, and social security reform. The Ninety-Ninth Congress also dealt with foreign relations, particularly concerning U.S.-Soviet relations and the ongoing Iran-Contra affair. Overall, it played a crucial role in shaping policies that impacted the nation.