The peaceful transition of power from Cardoso to his main opposition leader, Luiz Inácio Lula da Silva (elected in 2002 and re-elected in 2006), was seen as proof that Brazil had achieved a long-sought political stability. However, sparked by indignation and frustrations accumulated over decades from corruption, police brutality, inefficiencies of the political establishment and public service, numerous peaceful protests erupted in Brazil from the middle of first term of Dilma Rousseff, who had succeeded Lula after winning election in 2010 and again in 2014 by narrow margins.