It is really not difficult for anyone questioning a Trumpism to determine if it is true or false.  There are many ways to check what he says against sources such as videos, sates data bases, annual reports of corporations,  and a multitude of other sources.  However, you can not take a single source and decide it alone is always the one to use as proof.  Even more important is to actually read in context what the Trumpism says not just hear it and assume it said what you like to hear.  
Remember the Trump team will be spinning the Trumpism every time. It their job to spin thing towards Donald's favor. That is why using the Trump team members explanation alone  is not looking for truth it is accepting without verifying; Ronald Reagan's fundamental concept.