Tech entrepreneur Elon Musk has caused uproar after backing Germany’s far-right party in a major newspaper ahead of key parliamentary elections in the Western European country, leading to the resignation of the paper’s opinion editor in protest.

In May, France’s far-right party led by Marine Le Pen split from the AfD in its European Parliament coalition after the German party’s top candidate, Maximilian Krah, said that a person was “not automatically a criminal” just because they had been a member of the SS, Adolph Hitler’s paramilitary organization.