GETTY Angela Merkel is facing electoral oblivion in Berlin

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The crisis-stricken German leader is set to lose control of the country's capital as support continues to crumble over her open door migration policy. Her sinking Christian Democratic Union (CDU) party is rapidly dropping below the electoral waterline as ordinary Germans revolt over the impact of mass migration.

Mrs Merkel's credibility and popularity has taken a battering over her open door asylum stance, which has seen more than a million asylum seekers travel to Germany. Last week the far-right Alternative for Germany (AfD) party delivered the German chancellor's biggest humiliation yet, beating her CDU into third place in her own home state.

REUTERS The far-right Alternative for Deutschland (Afd) party is soaring in the polls

GETTY Mrs Merkel has been savaged over her migration policies

And the electoral news did not get any better for the beleaguered leader today as fresh polling in the German capital showed her party is set for another bleak night in local elections later this month. According to a survey for broadcaster ARD the situation is now so bad that the CDU and its coalition sister party, the Social Democratic Party (SDP), are set to lose their ruling majority. In contrast the AfD will increase its share of the vote once more, to 15 per cent, meaning it will have seats in 10 of 16 German state assemblies despite only being formed three years ago.

The anti-immigrant, anti-Brussels party has been experiencing a surge in support fuelled largely by anger over Mrs Merkel's disastrous open door asylum policy. According to the poll the SDP and CDU will both shed huge shares of their vote and will register results of 21 per cent and 19 per cent respectively, which will not give them enough seats to maintain their ruling coalition in the capital. The poll caps off a dire political week for troubled Mrs Merkel, who has been attacked not only by opponents by also worried members of her own party.

Angela Merkel in pictures Tue, August 8, 2017 Angela Merkel has served as German Chancellor since 2005 and Leader of the Christian Democratic Union since 2000. We take a look at her political career in pictures. Play slideshow AFP/Getty Images 1 of 83 Angela Merkel through the years