If you want to understand Trump you need to see what Steve Bannon, his top strategist thinks, and a good way to do that is to read the Breitbart website (often cited by Trump and Bannon). The Republican bill was totally the opposite of what Trump should have supported because it hurts his supporters and helps his enemies including big insurance companies. Bannon and Breitbart were opposed to the Republican plan, although Bannon kept his opposition quiet-- he was upset that Paul Ryan had conned Trump into supporting a terrible plan, Trump realized too late that he made a mistake supporting Ryan's plan-- and he has turned back to Bannon for guidance.