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.

Elon Musk backed Germany’s far-right Alternative for Deutschland party, known as the AfD, in an opinion piece published in a German newspaper on Saturday, wading deeper into international politics as the billionaire has become a fixture in Trump’s orbit.

In the piece, Musk justified his support for AfD, calling it “Germany’s last spark of hope.” “Portraying AfD as far-right is blatantly false, considering that Alice Weidel, the party’s leader, has a partner from Sri Lanka!