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

US billionaire Elon Musk, a close adviser to US President-elect Donald Trump, again voiced his full-throated endorsement of the far-right Alternative for Germany (AfD) in a live talk with AfD politician Alice Weidel on Thursday evening.

Musk tested the boundaries of foreign election interference, hosting AfD co-leader Alice Weidel for a livestream interview on his X social media platform.