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 four-year mandate; and 52% said that whoever assumed the presidency should call new elections for president. However, holding new elections would only be possible with a 3/5 majority in both houses of congress. Alternatively, both could have been removed from office, depending on the outcome of a lawsuit filed in the Superior Electoral Court by the PSDB, party of Aécio Neves, the defeated candidate in the 2014 presidential elections, whose suit alleged electoral crime by the political alliance of Rousseff-Temer involving donations from the companies implicated in Operation Car Wash. After the Senate vote to suspend Rousseff's presidential powers and