rome italy rule democratic party pd lose support follow flop regional election sicily silvio berlusconi forza italia go italy gain grind accord poll release thursday national elections must hold next may recent opinion poll suggest end hang parliament ixe pollsters say back center-left pd lead former prime minister matteo renzi drop 23.8 percent 3.6 percentage point last survey mid-october pd slump enable maverick 5-star movement establish firmly italy popular party climb 27.9 percent previous 27.2 percent forza italia move third spot rise 15.5 percent 13.6 percent jump ahead long-time ally far-right northern league drop 1.6 percentage point 13.5 percent term electoral law approve last month allow creation multi-party coalitions ahead national elections center-right bloc expect emerge ballot box big single force bloc regional vote sicily nov. victory see personal triumph berlusconi use ballot revive political career years graft trials sex scandals ill-health 5-star come second mediterranean island pd limp distant third renzi party beset feud look unlikely reach pre-election pact myriad leftist group accuse push pd far leave ixe poll suggest center-right would take combine 33.8 percent vote bloc leaders say whichever party win vote decide prime ministerial candidate italy 's pd drop fast poll sicily flop