CNN:

The outcome is likely to have an impact on Merkel's coalition government, which took four months to form through difficult negotiations and has come close to imploding over migration issues and a scandal involving the country's spy chief. 
The CDU has accused CSU members of pandering to far-right sentiments to prevent losing supporters to the anti-migrant AfD, in publicized infighting that has tarnished the image of the two parties.

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