Dilma Rousseff run for president. She was elected in a run-off on 31 October 2010, beating Brazilian Social Democracy Party (PSDB) candidate José Serra. On 26 October 2014 she won a narrow second-round victory over Aécio Neves, also of the PSDB. Impeachment proceedings against Rousseff began in the Chamber of Deputies on 3 December 2015. On 12 May 2016, the Senate of Brazil suspended President Rousseff's powers and duties for up to six months or until the Senate decided whether to remove her from office or to acquit her. Vice President Michel Temer assumed her powers and duties as Acting President of
Impeachment of Dilma Rousseff in testimony to the committee investigating Operation Car Wash allegations, the culmination of an internal investigation that had lasted eleven months. On 19 October 2016, Cunha was arrested on charges of corruption and bribery related to a Petrobras drillship purchase. In the Brazilian political system, the president and vice president run on the same ticket but have constitutionally separate terms. Michel Temer, who was president of the Chamber during the Fernando Henrique Cardoso presidency from 1995 to 2003, is a member of the Brazilian Democratic Movement Party (PMDB), which announced it was running against the Rousseff government in March 2016.