Here’s the thing about Trump. The only thing he cares about really is himself and improving his own lot, and also protecting himself from further prosecution. He used similar tricks to the 1930s Nazis to achieve power, but he’s most definitely a different person. Trump was never going to stick to the promises that weren’t going to benefit him if his party wanted him to do something different.
Why on earth would you take the word of someone who made his way through life paved on lies?