The administration’s focus on growing a healthy, competitive solar supply chain combines Biden’s drive to stimulate private investment in clean tech manufacturing and jobs and bipartisan concerns about Chinese trade practices.

According to Kelley Blue Book, the slow-down in EV sales could be a sign that "EVs are almost mainstream cars in parts of the country. Segment growth typically slows as volume increases."

The Treasury Department's revised list of EVs qualifying for federal tax credits provided mixed news for U.S. and foreign automakers and prospective buyers.