here with me now ron insana cnbc contributor and gordon chang, "daily beast" columnist and author of "the coming collapse of china" and back with us retired army general jeremy jacobs. explain to us the president's position on this. how are tariffs that the president is putting in place protecting our domestic industries back here at home? >> well, the assumption is by putting these tariffs in place, we would substitute any products we might get from china with those made in america. that's not typically right now under the current kind-of-multi-lateral arrangements that we have around the world the way the global supply chain works. not the way we get products, so it is in some sense an ill-informed view of how we procure our products and our imports, particularly those that we can get only from china. >> when you look at the products that have been tariffed, do all of them have an american made replacement. >> no. >> so that it kind of defeats the purpose of what you're saying. >> it does, and it's also larger