2010 presidential campaign
On November 26, 2008, the Liberal elected Mar Roxas, party president, as the party's presidential nominee and standard-bearer President of the Philippines in the then-upcoming 2010 presidential elections, and the party tapped Aquino as the former's campaign manager.
Following the death and funeral of Aquino's mother, former President Corazon Aquino, many people began calling on Aquino to run for President of the Philippines. This groundswell of support became known as the "Noynoy Phenomenon".
On August 27, 2009, Edgardo "Eddie" Roces, son of the late journalist and media executive Chino Roces, and a group of lawyers and activists formed the Noynoy Aquino for President Movement (NAPM), a nationwide campaign to collect a million signatures in order to persuade Aquino to run for president, reminiscent of Roces' father, who on October 15, 1985, launched the Cory Aquino for President Movement (CAPM), collecting more than one million signatures nationwide and asking Aquino's mother to run against Ferdinand Marcos in the 1986 presidential snap elections.
On September 1, 2009, at the Club Filipino, in a press conference, Senator Mar Roxas, presidential nominee of Liberal, announced his candidacy's withdrawal from the 2010 presidential race and expressed his support for Aquino, as the party standard-bearer instead. Aquino later stood side by side with Roxas, but did not make a public statement at the press conference. The next day, Aquino announced that he would be going on a "spiritual retreat" over the weekend to finalize his decision for the elections, visiting the Carmelite sisters in Zamboanga City, reminiscent of his mother's own soul-searching in 1985 before deciding to run for the elections the following year. He came back on September 9 to formally announce his candidacy. Almost two weeks later, Roxas pledged to run alongside Aquino as the Liberal's standard-bearer for vice-president. The two men filed their respective certificates of candidacy for president and vice-president on November 28, 2009.
Fake psychiatric reports on Aquino's mental health began circulating online during the 90-day election campaign period from February 9 – May 8, 2010, Aquino received information that the first such report came from the wife of Nacionalista Party supporter and former National Power Corporation (NAPOCOR) president Guido Delgado, a move Aquino claimed was made with "malicious intent". A second report came from an unidentified supporter of Senator Manny Villar, the Nacionalistas' leader and presidential candidate. Later presented by Delgado at a press conference, the psychiatric report was supposedly signed by Father Jaime C. Bulatao, S.J., PhD, a Jesuit priest, a professor of Psychology and a clinical psychologist at the Ateneo de Manila University, taken when Aquino was finishing his bachelor's degree in economics at the university in 1979. It reportedly showed that Aquino suffered from depression and melancholia; the priest later denied writing the document at all. Another supposed psychiatric report that later surfaced claimed that Aquino suffered from major depressive disorder; the report's supposed author, Jesuit priest Father Carmelo A. Caluag II, denied writing any evaluations of Aquino. The university's psychology department later debunked the documents, with Aquino labelling them as another desperate effort by rivals to malign his reputation.
During the campaign, Senator Francis Escudero began endorsing Aquino as president and PDP–Laban standard-bearer Jejomar Binay, for Vice President, launching the Aquino–Binay (NoyBi) campaign.
On June 9, 2010, at the Batasang Pambansa Complex, in Quezon City, the Congress of the Philippines proclaimed Aquino as the president-elect of the Philippines, following the 2010 election with 15,208,678 votes, while Jejomar Binay, the former mayor of Makati, was proclaimed as the vice president-elect of the Philippines with 14,645,574 votes, defeating Mar Roxas.
