Argentina opposition scores big primary win, hurting Macri's re-election bid

Presidential candidate Alberto Fernandez speaks on stage during the primary elections, at a cultural centre in Buenos Aires, Argentina.

Argentine voters soundly rejected President Mauricio Macri’s austere economic policies in primary elections on Sunday, raising serious questions about his chances of re-election in October, early official results showed.

A coalition backing opposition candidate Alberto Fernandez - whose running mate is former president Cristina Fernandez - led by a wider-than-expected 14 percentage points with 47.1% of votes, with fourth-fifths of ballots counted.