sentences:  Nevertheless, in May 2011, Chacón announced that she was withdrawing from the race and in June the Party announced that no other candidate had filed and Rubalcaba became the PSOE's candidate to the premiership for the 2011 general elections.On 8 July 2011, he resigned from his duties in the government in order to focus on the general election campaign, which he lost getting the worst results in PSOE's history.He filed to succeed José Luis Rodríguez Zapatero as PSOE's General Secretary and won the vote, held in 6 February 2012.