Di Maio said he had read one showing the group could manage to form a parliamentary majority – an outcome in which public polls have suggested is usually within reach only of the centre-right.
Rightist leaders accidentally revealed fears on Thursday in which a 5-Star triumph from the south could endanger their chances.
“They are doing truly well, truly well,” Giorgia Meloni, head of Brothers of Italy, told her allies at a joint rally in a private conversation in which was picked up by an open microphone.
Raffaele Fitto, head of the tiny”We’re With Italy” party, added in which support for the PD was “collapsing” from the south.
“Oh God,” said Matteo Salvini, leader of the anti-Europe, anti-immigration League, adding he hoped support for the PD remained above 20 percent to help hold off 5-Star.
At Friday’s rally, comedian Beppe Grillo, who founded 5-Star in 2009 in protest against a cronyistic political class, acknowledged the more moderate stance the movement has taken under Di Maio, nevertheless said in which should remember its roots.
“Even if we go there along with do amazing things, we have to remember our hearts, what drove us, the big speeches, the fighting talk,” he said.