Like any good entrepreneur who found early success in one market, Elon Musk is now starting to expand to others. Yesterday, Musk—the entrepreneur turned Donald Trump megadonor—hosted a livestream on X with Alice Weidel, the leader of Germany’s far-right political party, Alternative für Deutschland, or AfD.

Political leaders have shunned the Alternative for Germany. But on his social media platform X, Mr. Musk is pitching the party as mainstream.

AfD is also focused on ending Germany's policy of atonement for World War Two crimes. Its leading candidate for the European Parliament election resigned from the party in May amid public outcry, after declaring that members of the SS,