Prime Minister Antoine Gizenga resigned in September 2008, citing health reasons. He was succeeded by Adolphe Muzito.
Presidential elections were held in November 2011. Incumbent Kabila faced opposition leader and former prime minister Étienne Tshisekedi. The International Crisis Group deemed the election "unruly" and "chaotic" and other international observers said the vote was irregular and flawed. Nearly 20 people were killed in election-related violence. Nevertheless, Congo"s election commission ruled in December that Kabila prevailed, 49% to 32%. In the run-up to the election, Kabila—perhaps sensing a threat from the opposition and popular dissatisfaction with his rule—amended the constitution to do away with a second round of voting and stacked the electoral commission.
In March 2012, Prime Minister Adolphe Muzito resigned. His resignation came a little over three months after the violent presidential elections. Deputy Prime Minister Louis Koyagialo was appointed to temporarily replace Muzito. On April 18, 2012, former Minister of Finance Augustin Matata Ponyo Mapon was named prime minister.