After 1986, the KMT's hold on power was challenged by the emergence of competing political parties. Before 1986, candidates opposing the KMT ran in elections as independents or "nonpartisans." Before the 1986 island-wide elections, many "nonpartisans" grouped together to create Taiwan's first new political party, the Democratic Progressive Party (DPP). Despite the official ban on forming new political parties, Taiwan authorities did not prohibit the DPP from operating, and in the 1986 island-wide elections, DPP and independent candidates captured more than 20% of the vote. In 1987, President Chiang Ching-kuo lifted the emergency decree, which had been in place since 1948 and which had granted virtually unlimited powers to the President for use in the anti-communist campaign. This decree provided the basis for nearly four decades of martial law under which individuals and groups expressing dissenting views were dealt with harshly. Expressing views contrary to the authorities' claim to represent all of China or supporting independent legal status for Taiwan was treated as sedition. Since ending martial law, Taiwan has taken dramatic steps to improve respect for human rights and create a democratic political system. Almost all restrictions on the press have ended, restrictions on personal freedoms have been relaxed, and the prohibition against organizing new political parties has been lifted. Lee Teng-hui succeeded Chiang Ching-kuo as President when Chiang died on January 13, 1988. The Civic Organizations Law passed in 1989 allowed for the formation of new political parties, thereby legalizing the DPP, and its support and influence increased. Lee was elected by the National Assembly to a 6-year term in 1990, marking the final time a President was elected by the National Assembly. In the 1992 Legislative Yuan elections, the DPP won 51 seats in the 161-seat body. While this was only half the number of KMT seats, it made the DPP's voice an important factor in legislative decisions. Winning the Taipei mayor's position in December 1994 significantly enhanced the DPP's image. The DPP continued its strong showing in the 1995 LY race, winning 45 of the 157 seats to the KMT's 81. In 1996, Lee Teng-hui was elected President and Lien Chan Vice President in the first direct election by Taiwan voters. In the November 1997 local elections, the Democratic Progressive Party (DPP) won 12 of the 23 county magistrate and city mayor contests to the Kuomintang (KMT)'s 8, outpolling the KMT for the first time in a major election. In the 2001 LY elections, the DPP won a plurality of seats for the first time. In March 2000, DPP candidate Chen Shui-bian became the first opposition party candidate to win the presidency. His victory resulted in the first-ever transition of the presidential office from one political party to another, validating Taiwan's democratic political system. In a hotly contested election on March 20, 2004, President Chen Shui-bian was re-elected by 50.1% of the popular vote to a second term. The election was marred by a shooting incident the day before the election during which President Chen and his running mate Vice President Annette Lu were slightly wounded. While the opposition contested the results, it was the first time that the DPP had won an outright majority in an island-wide election.

The March election also included a "defensive referendum." Historically, the issue of referenda has been closely tied to the question of Taiwan independence, and thus has been a sensitive issue in cross Strait relations. There were two referenda before the voters on March 20. The first asked in light of the P.R.C. missile threat whether Taiwan should purchase anti-missile systems. The second asked whether Taiwan should adopt a "peace framework" for addressing cross Strait differences with the P.R.C. However both referenda failed to obtain support from over 50% of registered voters, as required to be valid.

President Chen Shui-bian has called for major constitutional reforms by 2006 aimed at further reducing layers of government, and making other structural changes aimed at improving governance. The People's Republic of China has accused Chen of using the constitution issue to move Taiwan towards independence. He expressed opposition, however, in his May 20, 2004 inaugural address to using constitutional reform to alter the constitution's definition of Taiwan sovereignty.

The final National Assembly passed a set of constitutional amendments on June 7, 2005 that will halve the number of LY seats from 225 to 113 and create single-member legislative election districts. The revisions also abolished the National Assembly and provided for the public to confirm or reject future constitutional amendments passed by the LY. President Chen has called for "Round Two" of constitutional revision focusing on the form of government (presidential or parliamentary, 5-branch or 3-branch) and on human, labor, and aborigine rights. He has pledged not to include independence or name change in his proposed constitutional revisions.

In the December 2004 Legislative election, the ruling DPP won a plurality with 89 of the 225 seats, gaining 2 seats more than it did in 2001. The opposition KMT won 79 seats, or 11 more than it did in 2001. The KMT's coalition partner, the PFP, won only 34, 12 fewer than it won in 2001, while the DPP's partner, TSU won 12 seats. The New Party won one seat. The ruling coalition's inability to secure a majority has left the LY in virtual gridlock since the election. The KMT won a landslide victory in December 2005 local elections, winning 14 of the 23 city mayor and county magistrate races to the ruling DPP's 6.

The People's First Party (PFP) was formed in the wake of the March 2000 presidential election, composed of former KMT members who supported former KMT Taiwan Provincial Governor James Soong's presidential bid. PFP and KMT subsequently formed the "Pan-Blue" Alliance to oppose the DPP government. Former KMT President Lee Teng-hui, in turn, broke with the KMT and formed the pro-independence Taiwan Solidarity Union (TSU) in 2001. The TSU, which advocates changing Taiwan's official name and completely replacing the 1947 constitution, allied itself with the DPP as part of the ruling "Pan-Green" alliance.

The development of semiofficial cross-Strait relations has been halting. Prior to April 1993, when talks were held in Singapore between the heads of two private intermediary organizations--Taiwan's Straits Exchange Foundation (SEF) and the P.R.C.'s Association for Relations Across the Taiwan Strait (ARATS)--there had been some lower-level exchanges between the two sides of the Strait. The April 1993 SEF-ARATS talks primarily addressed technical issues relating to cross-Strait interactions. Lower-level talks continued on a fairly regular basis until they were suspended by Beijing in 1995 after President Lee's U.S. visit. Unofficial exchanges resumed in 1997 through informal meetings between personnel of the two sides' unofficial representative organizations. Direct SEF-ARATS contacts resumed in April 1998, and the SEF Chairman visited the mainland in October 1998. A planned visit by ARATS Chairman Wang Daohan to Taiwan in the fall, however, was postponed following statements made by then-President Lee Teng-hui that relations between the P.R.C. and Taiwan should be conducted as "state-to-state" or at least as "special state-to-state relations." Since his May 20, 2000 inauguration, President Chen has called for resuming the cross-Strait dialogue without any preconditions. President Chen has stated that such talks should be conducted in the spirit of the 1992 Hong Kong talks, a reference to a meeting the two sides held to discuss how to handle political barriers to cross-Strait interaction. The P.R.C. has responded that the Chen administration must acknowledge that the two sides reached a consensus that there is only "one China" before any dialogue can be restarted. In his May 20, 2004 inaugural address, President Chen recognized the P.R.C.'s insistence on "one China" but stopped short of endorsing the concept. He called for a new "Cross-Strait Framework for Peace and Stability" and enhanced political, economic, and social exchanges between the two sides. In the face of the "one China" recognition obstacle and Taiwan's resentment over the P.R.C.'s March 2005 "Anti-Secession Law," Taipei and Beijing have been cautiously feeling each other out on a series of smaller, intermediary steps, including cross-Strait cargo and passenger charter flights, sale of Taiwan agricultural products in the P.R.C., and P.R.C. tourists visiting Taiwan. The United States has welcomed and encouraged the cross-Strait dialogue as a process which contributes to a reduction of tension and to an environment conducive to the eventual peaceful resolution of the outstanding differences between the two sides. The United States believes that differences between Taipei and Beijing should be resolved by the people on both sides of the Strait themselves. The United States has consistently stated that its abiding interest is that the process be peaceful.