I've said time again, the F-35 is a fighter walking with a mortal wound. Any president would have canceled it long ago, except Obama. He has proven time again to be a happy puppet of the industrial, financial and war lords. 
Trump will cancel the F-35 program once in office. You can take that to the bank. The U.S. Air Force and Navy will have none of it beyond that's been bought. As to the Marines they will keep a small fleet for their assault carriers. This version is the original design model. Also, the UK Navy will have its Marines version as well. Their version is heavily modified and they will insist total technology and production control. 
That will be the end of the F-35.