Renzi, Grillo up in poll, Napolitano, Letta down
Alfano up, Berlusconi steady25 October, 11:54
Florence Mayor Renzi, who is set to launch his bid for the PD leadership Friday, got 52% while Napolitano dropped 5% to 48%.
PD Premier Enrico Letta fell 2% to 42% while anti-establishment 5-Star Movement leader Beppe Grillo rose 6% to 30% after continued squabbling in the PD-PdL government.
Angelino Alfano, the secretary of Silvio Berlusconi's People of Freedom party, rose 1% to 29% while his boss was steady on 21% amid renewed strains in the centre-right group.
Alfano recently forced Berlusconi into a U-turn over a confidence vote on the media magnate's looming ban from the Senate.
The three-time premier has called a meeting Friday where some think the PdL could split.