Tim Walz is sharing his new favorite way to indulge in a little self-care. The Minnesota governor and running mate of former Vice President Kamala Harris posted a video to X, formerly Twitter, Tuesday that seemed to get under Elon Musk’s skin.

The former vice presidential candidate Walz said he checks Tesla’s share price to give him a “little boost during the day,” nodding to Musk’s company’s more than 40% year-to-date loss.

The Minnesota governor derided Elon Musk, a naturalized United States citizen, as a “South African nepo baby.”