Reforms continued in the 1990s. The Additional Articles of the Constitution of the Republic of China and the Act Governing Relations between the People of the Taiwan Area and the Mainland Area defined the status of the ROC, making Taiwan its ''de facto'' territory. Lee Teng-hui was re-elected as the KMT candidate in 1996, in the first direct presidential election in the history of the ROC, defeating DDP candidate Peng Ming-min. With democratization, the issue of the political status of Taiwan gradually resurfaced as a controversial issue where, previously, the discussion of anything other than unification under the ROC was taboo. During the later years of Lee's administration, he was involved in corruption controversies relating to government release of land and weapons purchase, although no legal proceedings commenced. In 1997, "To meet the requisites of the nation prior to national unification", the Additional Articles of the Constitution of the Republic of China was passed and then the former "constitution of five powers" turns to be more tripartite.