berlin german chancellor angela merkel say regret 2015 decision open country border hundreds thousands refugees add deter campaign angry hecklers interview welt sonntag newspaper sunday merkel deny make mistake open-door policy even though arrival million refugees last two years syria iraq open deep rifts conservative party depress support four weeks sept. 24 election emnid opinion poll sunday show merkel conservatives would win 38 percent 15 point ahead center-left social democrats spd 32 percent february well 41.5 percent party last election 2013. make important decisions 2015 way merkel say extraordinary situation make decision base think right political humanitarian standpoint kinds extraordinary situations happen every country history add head government act decision open border contribute surge support far-right alternative germany afd party pollsters say could win 10 percent september election merkel see fourth term contend loud sustain heckle demonstrators strongly oppose refugee policies far campaign trail volume intensity protest especially strong home region formerly communist eastern germany 63-year-chancellor say would keep away areas animosity towards run high democracy everyone freely express public way want say important go way avoid certain areas bunch people scream support merkel party recover somewhat influx refugees slow 2016 280,000 fell even 106,000 first seven months year merkel say unfair greece italy leave carry full burden refugee crisis simply geography add would stop push fair distribution refugees across european union countries refuse accept refugees contradict spirit europe overcome take time patience succeed merkel regret refugee policy despite political cost