Why is "2011 Portuguese legislative election" trending?

Wikipedia Overview

The 2011 Portuguese legislative election was held on 5 June, to elect all 230 members of the Assembly of the Republic. Pedro Passos Coelho led the centre-right Social Democratic Party to victory over the Socialist Party, led by incumbent Prime Minister José Sócrates. Despite a historically low turnout of less than 60 percent of registered voters, the right-wing won a clear mandate, winning nearly 130 MPs, more than 56 percent of the seats, and just over 50 percent of the vote. While the People's Party, continuing the trend they began in 2009, earned their best score since 1983, the Social Democrats exceeded the expected result in the opinion polls and won the same number of seats as they did in 2002, when the PSD was led by José Manuel Durão Barroso. Of the twenty districts of the country, Pedro Passos Coelho's party won seventeen, including Lisbon, Porto, Faro, Portalegre, Castelo Branco, Coimbra, Santarém and the Azores, that tend to favor the Socialist Party.