Stefanos Kasselakis, ousted leader of Greece’s Syriza, leaves party to launch new movement

Businessman, who has mostly lived in US and only entered politics last year, left after party congress refused to consider his leadership candidacy

Stefanos Kasselakis, the Greek American shipping investor and former banker who burst into Greek politics over a year ago, has said he is leaving leftwing Syriza, the country’s main opposition party he had led, and forming his own.

Kasselakis announced he was leaving Syriza on Friday after a two-day party congress refused to consider his leadership candidacy in a contest that will take place later this month.