Kentucky Sen. Rand Paul said Sunday there’s a reason why buying American-made goods is not always the best option: cost.“You know, I think all of us have this goal to buy American, but we have to think this thing through,” Paul told Jake Tapper on CNN’s "State of the Union."Tapper was pressing Paul on why President Donald Trump touted "Made in the USA" goods all week but still hires foreign workers at his Mar-a-Lago Club in Florida.