Voters seemed to embrace Kyriakos Mitsotakisās tough stance on migration and approach to the economy, and were less concerned about revelations of spying on the opposition.
Many children of Greeceās traumatic years of economic collapse have opted for pragmatism over radicalism and say they will back a conservative on Sunday.
Prime Minister Kyriakos Mitsotakisās New Democracy party did not win enough votes to form a one-party government. But he appeared to rule out talks to form a coalition, setting the stage for a second vote in weeks.
Revelations that the cellphone of a top opposition politician was tapped have shaken the government and stoked concerns over just how widespread such surveillance is.