Feb. 18 (Bloomberg) -- Portugal's opposition Socialist Party, led by Jose Socrates, will win a majority in parliament in elections Feb. 20, ousting Social Democratic Prime Minister Pedro Santana Lopes after seven months in power, three polls showed.
One poll, by Publico newspaper and the state-owned RTP television network of 5,051 voting-age Portuguese, showed the Socialists taking 46 percent of the vote and winning between 118 and 124 seats in the 230-seat assembly.
``People vote based on their expectations for a party,'' said Ana Claudino, an economist at Banco Bilbao Vizcaya Argentaria SA in Lisbon. ``They don't want to vote for someone who hasn't done what he said he would since taking office.''
Santana Lopes took over in July from Manuel Durao Barroso, who had been appointed president of the European Commission, promising the Portuguese serious and stable government. President Jorge Sampaio called an early election in December, saying he was concerned about the government's stability after a minister resigned who had been in office for just four days.
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