If President Trump really wants to go through with getting Americans more jobs and improving the economy without international help then he needs to crack down on these corporations that are giving him these false promises. If he really has good intentions then he can't take Foxconn, Softbank, Alibaba, Intel, IBM, or any other cooperation's word as fact. Because obviously leaving it up to them is not going to get American's these jobs. Taking into account that American workers are under unions, unlike Chinese workers, more medical benefits, hours, wages and safety conditions are going to have to be met before Americans can work in manufacturing. Considering corporations strive to make the most profit as possible, they won't be likely to hire Americans: who won't work in "sweatshop" conditions. So my best advice to President Trump and the rest of the Federal government is that they need to be more involved in this issue. Maybe get a signed legal document to show the funding and promise for the construction of a new branch building the next time he meets up with the president of Foxconn or other corporation. Send a representative over to discuss the conditions of this new branch. Send in a representative to follow up on the negotiation to make sure the branch is actually being paid for and constructed. Like President Franklin D. Roosevelt did with his "New Deal" plan he could make a whole agency dedicated for this specific purpose. An example is the "Works Progress Administration." Roosevelt had a similar goal: to provide jobs for American citizens during the Great Depression. The jobs given then were government jobs and they weren't from international corporations but the concept was the same. He got busy in the first one hundred days of his presidency, meeting with Congress and making laws, which is what I assume President Trump is trying to do as well. So instead of hoping these promises go through, get involved and make sure they do.