Elections in Portugal: Politicians marred by corruption, scandal

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 party Chega could emerge as a kingmaker from the election: polls have seen it winning as much as 20 percent of the vote. Clara Le Nagard and Armelle Exposito report from Lisbon.