rome prime minister paolo gentiloni remain italy trust leader 5-star movement luigi di maio move second place overtake former premier matteo renzi first time accord poll publish wednesday ixe survey leaders main party say 39 percent voters confidence gentiloni take office december renzi resign follow defeat referendum constitutional reform italy due hold national elections may renzi say candidate prime minister democratic party pd gentiloni also pd member expect fall back rank parliament dissolve 27 percent say faith renzi 32 percent back di maio pick prime ministerial candidate anti-establishment 5-star movement september boost profile stand last ixe leadership survey august gentiloni approval rat 32 percent renzi 25 percent di maio 18 percent people probably find gentiloni composure reassure roberto weber carry ixe poll tell rai radio matteo salvini far-right leader northern league party rat 27 percent giorgia meloni head rightist brothers italy party 26 percent ally silvio berlusconi see natural head centre-right bloc adrift 21 percent previous survey meloni 17 percent opinion poll put 5-star pd party roughly neck-and-neck around 27 percent northern league 15 percent berlusconi forza italia go italy party around 13 percent brothers italy percent new electoral system vote law last month likely produce hang parliament forthcoming ballot one party coalition come anywhere close win enough seat govern alone gentiloni see italy 's trust political leader poll