rome deal libya slash number migrants reach italy could scupper rule center democratic party pd already dwindle hop stay power next year oppose pd potential coalition partner deal strike february popular italian public right-wing anti-establishment party ahead opinion poll draw criticism unite nations right group many italy leave accord italy european union pledge finance migrant camp libya rome also agree train libyan coastguard part crackdown migrants attempt hazardous sea cross europe deal also lead tens thousands migrants trap libya humanitarian group say lock appal condition buy sell subject crimes daily basis one politician want change agreement emma bonino former foreign minister center government always criticize agreement libya cork bottle hold bonino tell reuters italians perception invade muslim foreigners true fear fantastic win elections simply useless control migration bonino consider form pro-eu party left-leaning figure could support pd ahead next year national election must hold may criticism libya deal giulio marcon top lawmaker low house italian leave party say complicit migrant push back left-wing voters hold humanitarian value dear say marcon whose party far refuse alliance pd anti-immigrant party gain pd need support party leave particular trail populist 5-star movement recent poll 24 percent 29 percent center coalition include anti-immigrant northern league silvio berlusconi forza italia go italy far-right brothers italy combine support total 36 percent deal libya model similar one strike eu turkey successful reduce flow migrants italy arrivals third far year compare period 2016. october alone arrivals 80 percent year early ordinary italians alarm arrival 600,000 migrants past four years welcome trend swg poll month show two thirds italians want immigrants fear take away job increase crime northern league tap anti-immigrant mood see popularity double 15 percent three years leader matteo salvini accuse fake refugees invade italy bring crime outdo 5-star movement candidate prime minister luigi di maio summer accuse charity ship rescue migrants pile onto overcrowd unseaworthy boat taxi service february deal libya coastguard far pick 20,000 migrants include refugees force detention center hold indefinitely last week u.n. high commissioner human right condemn eu support libyan coastguard inhuman intercept migrants imprison subject unimaginable horrors former u.n. secretary-general nobel peace prize winner kofi annan say libya deal suggest italy complicit breach geneva convention say refugees return place may persecute convention push refugees back make arrangement somebody else keep move way complicit annan say trip rome month italian leave 's efforts stop migrants may backfire election