As much as I personally dislike the AfD, claiming they're breaking the law by doing Nazi propaganda is going a bit too far. They definitely straddle the line,

As much as I personally dislike the AfD, claiming they're breaking the law by doing Nazi propaganda is going a bit too far. They definitely straddle the line, but no court has judged them as Nazi yet. There were however other parties, like ANS, NO and FAP (amazing name) that were banned in Germany because of that. Perhaps that's why AfD has wised up.