Last summer something strange started happening in the recreational-vehicle business. Even as President Donald Trump proclaimed “an economic turnaround of historic proportions” and his top economic adviser, Larry Kudlow, asserted that “this is a boom that will be sustainable frankly as far as the eye can see,” RV manufacturers shipped out 11.4% fewer vehicles and trailers in June 2018 than in the same month a year earlier. Shipments rebounded in July but turned negative again in August, and have been falling short ever since.
