2008 Mongolian legislative election

After intermediate results published on 30 June showed MPRP victory, Democratic Party chairman Elbegdorj declared on 1 July that the elections were rigged and that his party would not accept the results.[9] In a press conference held on 7 July, DP politicians Dambyn Dorligjav, Zandaakhuugiin Enkhbold and Lamjavyn Gündalai declared that there had been massive irregularities with voter registration. Some of their claims were later repudiated by the central registry office.[10] Other allegations were irregularities in the counting process, and voter bribery.

For illegally using private documents of voters such as duplicating names of voters by (publishing duplicate IDs and false IDs with the names of dead people and so on) in 2008 parliamentary elections, L.Amarsanaa (MPRP), former chairman of State General Registration Authority was investigated by the Independent Authority Against Corruption and charged in September 2008.[11]

On 1 July a peaceful gathering started in Sukhbaatar Square organized by the leaders of some of the smaller parties that took part in the elections. Eventually a large crowd gathered, mainly of young men, surrounding the adjacent MPRP Headquarters. The group started throwing rocks at the building and eventually advancing on it. Smaller police force responded with batons, water cannons, tear gas, rubber bullets, and live ammunition.[12][13] In the evening fire started in the MPRP headquarters.[14] Not enough measures to stop the riot or extinguish the fire were taken by the authority. Around midnight local time, after simply watching the live broadcast of the riot whole day on television channels, President Nambaryn Enkhbayar declared a state of emergency to be in effect for the following four days.[15] Armored Personnel Carriers were deployed to the streets of Ulaanbaatar, a night curfew and a media blackout were declared.

Five people, all of them civilians, were killed during the state of emergency: four were shot, and one apparently died from carbon monoxide poisoning.[16][17] The Mongolian Minister of Justice estimated 220 civilians and 108 service members were injured. Amnesty International raised concerns over the use of "unnecessary and excessive force" by the police.[18]) Approximately 700 people were later arrested suspected to be being protesters,[19] of whom 140, including 13 minors and 3 women, have been sentenced to 2–7 years in prison as of 31 October 2008.[20]

On 15 and 19 August, ten police officers were arrested and charged in connection with the shootings in the night of 1 and 2 July. On 20 August, relatives of these arrested officers organized a protest demonstration on Sükhbaatar Square.[21][22][23]

On 18 July Democratic Party chairman Tsakhiagiin Elbegdorj said that the DP would boycott the opening session of the parliament on 23 July. He also said that he was prepared to resign as DP Chairman if the 200 protesters still being held by the police are not released and the political crisis did not end.[24] However, the DP members were present in the opening session, with many of its members criticizing the Chairman of the General Elections Committee, and the way the elections were held. After Elbegdorj gave his party's position, members of the DP went out of the parliament. As a result, the new members of the parliament were not sworn in.

On 28 August, most of the DP representatives in the new State Great Khural (the Parliament) decided to attend the parliament, and all but Elbegdorj were sworn in.[25][26] On 11 September, S. Bayar was elected as Prime Minister of a coalition government between MPRP and DP.[27] Elbegdorj finally was sworn in on the same day.[28]

The members from Dornod (two MPRP, one DP) were sworn in on 16 September 2008.[29] The members from Bayangol (2 MPRP, 1 DP, 1 Civic Coalition) were announced on 9 October 2008.[30]

On 2 September 2008, Elbegdorj resigned as the head of the Democratic Party as he said. Norovyn Altankhuyag was elected by the Democratic Party's National Consultative Committee as the next chairman, and the Democratic Party entered a coalition government with the MPRP. On September 12, Elbegdorj was the only member of parliament who voted against Sanjaagiin Bayar as Mongolia's new prime minister.[31] Bayar was the chairman of MPRP and Prime Minister who handled 2008 election rigging, riot and measures following riot including the police shooting to civilians that resulted in killing four people and wounded a dozen.

24 May 2009, nearly a year after the crisis, Tsakhiagiin Elbegdorj made victory in the 2009 presidential election over incumbent President Enkhbayar.[32][33]