Also keep in mind Trump has also suggested that those owning S Corps, LLCs, etc. also should only pay the top 15% corp income bracket. This is pretty big. This means that someone owning a small business now who pays the marginal rates as a pass through on his taxes (up to 39%) will see a reduction down to 15%.
This has ramifications throughout the country. I foresee many people becoming independent contractors. I myself would move my investments into an LLC and trade there, and pass through the profits at 15% vs. my marginal short term cap rate...