ANSWER: Left wing Syriza party
Explanation:
Alexis Tsipras took oath as the Greek PM following a decisive victory in the Greek early national elections for his left wing Syriza party. Earlier, Tsipras had served as PM between January and August 2015 and at 41, he dominates Greek Politics. He will renew his pro-European coalition with the small, right-wing populist Independent Greeks (ANEL) party, which beat opinion polls to clear the three per cent threshold required for representation in parliament. The new government will have a small majority of just five seats, but, as per Tsipras, is aiming to see out a four-year mandate.