Since you asked, here's an example of a policy change: West Virginia coal miners aren't a democratic voting block by any means. They are part of Trump's "deplorables" (which, by the way, she apologized for the next day. And I'm talking adult apology. Not the apologies from trump, that typically never come, or under extreme pressure, come in the form of "I'm sorry people were offended" fake apology format. I digress....).
Anyway, for these people, their livelihood is becoming a 20th century relic regardless of any position on climate change (simple economics mean coal as a whole is on the out, and automation means coal miners aren't much needed regardless of demand for coal energy). Despite this fact, Hillary Clinton has real policy proposals that address the future of these people. Education and training to get them into 21st century energy jobs is a great policy, for again, a voting block that's firmly trump. The problem here is that trump peddles myth that he can somehow get their coal jobs back (for somebody who's "a great businessman", I'm sure he understands that the market forces at work will not allow coal mines to reopen and become heavily labor intensive).
While these voters will continue to cling to this myth that this man will get them their coal jobs back, Hillary is listening to their needs, and actually proposing a policy that isn't a wave of the hands, and a magical return to decades-old economics.
Thoughts?