Elections in Portugal: Politicians marred by corruption, scandal

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In Portugal, voters head to the ballot box on Sunday in a snap general election called after Socialist Prime Minister Antonio Costa resigned in November when police launched a probe into alleged corruption. The far-right Chega party could emerge as a kingmaker from the election, since polls have seen it winning as much as 20 percent of the vote. Clara Le Nagard and Armelle Exposito report from Lisbon.