Portuguese voters are heading to the polls in early parliamentary elections on Sunday in which the ruling Socialists face possible defeat, however no clear winner was expected and all eyes were locked on the country’s rising far right. The consensus among opinion pollsters was a narrow victory for the centre-right Democratic Alliance (AD) coalition over the Socialist Party (PS). The Socialists have held power in Portugal for eight years. But neither of the two biggest mainstream parties are expected to achieve the absolute majority that the Socialists won by a wide margin at the beginning of 2…