Elon Musk held a live event on his social media platform X on Thursday with a leader of the German anti-immigrant, far-right political party Alternative for Germany (AfD), the latest step in the tech billionaire’s campaign to rally support behind reactionary candidates across Europe and North America.

Musk, the wealthiest person in the world, spent more than an hour speaking with Alice Weidel, co-leader of AfD, giving the anti-immigrant party a high-profile boost ahead of the national…