2011 São Toméan presidential election

Manuel Pinto da Costa previously served as São Tomé and Príncipe's first president from independence in 1975. He governed the islands as a one-party socialist state under the Movement for the Liberation of São Tomé and Príncipe (Portuguese: Movimento de Libertação de São Tomé e Príncipe, MLSTP).[6] In 1991, the legalisation of opposition political parties led to the country's first election under a democratic system. Pinto da Costa was not a candidate in that election and instead announced he would retire from politics. The MLSTP did not present an alternative candidate and Miguel Trovoada was elected unopposed. Despite his previous declaration, Pinto da Costa returned to participate in the presidential elections of 1996, but was narrowly defeated by Trovoada. In 2001, he ran against incumbent president Fradique de Menezes, and was again unsuccessful.[2]

Pinto da Costa resigned from the MLSTP in 2005. The party is currently led by Aurélio Martins, who placed sixth in the first round vote count. Other major candidates included former prime minister Maria das Neves and former defence minister Elsa Pinto, both independents. Pinto da Costa's main rival, Carvalho, represented the ADI, which won the parliamentary elections in August 2010 and is the ruling party of incumbent Prime Minister Patrice Trovoada.[3][6][7]

Missions from the African Union, Community of Portuguese Language Countries and the Economic Community of Central African States sent observers to monitor the election, which was declared free and fair.[8] The only major controversy observed was a boycott by around 30,000 from five small villages on São Tomé's northern shore, in protest over grievances with living conditions that had not been addressed.[6][8] The polls were re-opened in these villages on 20 July, but the results did not affect the outcome.[8]

A total of 92,639 citizens were registered to vote.[9] In the first round, the national electoral commission, headed by Victor Correia,[3] recorded a turnout of 68%.[9][8] Of the 120 candidates, Da Costa and Carvalho won the most votes (35.6% and 21.8% respectively), but neither candidate received enough support to claim a majority.[1] Delfim Neves and Maria das Neves both won substantial vote counts (over 14% each), but only the first two placeholders went through to the run-off. After the results were confirmed, most of the eliminated candidates,[1] including Delfim Neves, Maria das Neves and Aurélio Martins, endorsed da Costa's bid for the run-off.[10]

Several analysts have raised concerns that Pinto da Costa's victory may trigger a return to the authoritarian rule seen during his previous period in power.[11]

• Pinto da Costa's campaign website