( June 22, 2026, 4:09 PM EDT) -- SACRAMENTO, Calif. — A California federal judge granted the United States’ motion to intervene as a plaintiff in a lawsuit filed by the American Free Enterprise Chamber of Commerce (AmFree) challenging a partnership agreement between the California Air Resources Board (CARB) and major manufacturers of trucks and engines requiring the manufacturers to meet California's strict heavy duty truck-emissions regulations, regardless of federal legal challenges, in exchange for more flexibility and regulatory lead time....