Labor Secretary Marty Walsh visited Tesla CEO Elon Musk Sunday at the company’s factory in Austin, Texas, as the Biden administration looks to reverse inflation caused largely by a rise in energy prices and auto industry supply problems.

Musk relocated Tesla’s corporate headquarters from California to Texas in 2021, and Walsh’s tour of the facility comes ahead of its April grand opening, according to Axios. The trip, though not open to the press, represents a potential thawing in the relationship between the world’s largest electric vehicle producer and the Biden administration.