Excerpt:
The success of the anti-migrant AfD marks a turning point for Germany's usually stable and consensus-driven politics -- the rise of right-wing populists at the expense of old mainstream parties.
The accelerated splintering of the political landscape further erodes the moderate centre, sparking disarray that will make coalition building more difficult, analysts warn.
The far-right Alternative for Germany (AfD) made strong gains in three state polls Sunday in what was widely seen a protest vote against Chancellor Angela Merkel's open-door policy on refugees.