berlin fear germany voter apathy could boost far-right alternative germany afd sunday election drive chancellor angela merkel main rival final days campaign urge backers go vote many voters view fourth term merkel almost inevitable turn turgid campaign occasionally puncture heckle tomato hurl protest merkel 's refugee policy pollsters say turnout may low gms poll thursday say plan vote undecided number 34 percent high 29 percent vote last election 2013. request everyone vote vote party adhere 100 percent constitution merkel tell mdr radio thursday point afd liken commentators hitler nazis members call germans rewrite history book nazi era party dog row holocaust denial crime germany although poll show conservative merkel trust stability-loving germans stand unpredictable leaders unite state russia turkey track win shape coalition wide open pollsters say low turnout could boost afd gain popularity focus migration security poise first far-right party enter germany parliament half century comment top members cause outrage month one leader say germany proud soldier achievements world war two allensbach pollster renate koecher tell die zeit weekly much depend turnout willingness vote strong among conservative afd supporters say undecideds fdp green leave voters indicate high turnout would help small party leave say two big blocs dip slightly poll last month small party inch gms survey afd two point 10 percent merkel conservative bloc slip one percentage point 37 percent main opponent social democrats sdp unchanged 22 percent spd leader martin schulz also urge supporters vote say everything still possible highly unusual intervention week merkel right-hand man peter altmaier head chancellor office stir controversy suggest would good germans vote rather vote afd spd justice minister heiko maas accuse help afd tell people vote help afd campaign exactly want say late survey suggest coalition options limit another grand coalition merkel conservatives spd three-way jamaica alliance conservatives fdp green could limit merkel room maneuver euro zone reform last-minute mobilization efforts party realistic coalition option apart grand coalition one conservatives fdp green say gms green fdp opposite end political spectrum play likelihood join force fear would put voters thursday fdp leader christian lindner strike positive note one go government fdp enthusiastic go government implement good things tell die welt fear far-right surge merkel tell germans vote sunday