Germany's mainstream parties are reassessing their strategies after strong electoral showings by the far-right Alternative for Germany (AfD) and parties on the far left, leaving fragile coalitions and a fragmented political landscape. With the economy struggling, analysts say the combination of weak governments and public discontent recalls the instability that preceded the Nazis' rise in the 1930s. The trend matters because it complicates governing in Europe's largest economy and tests whether the centre can win back disaffected voters.