Answer
Alexis Tsipras, the leader of the anti-austerity party Syriza, held the position of Secretary in Synaspismos Youth, the youth wing of the Socialist Party of Greece (Synaspismos), from 1999 to 2003. During his time in Synaspismos Youth, Tsipras was a vocal critic of the government's austerity policies and supported the party's move towards the left.