Edit: Somehow this part of the comment got cut off... Oops...

After itemization, shelters, and literally hundreds of loopholes, the 40% corporate tax rate is nothing more than a talking point. The actual rate is closer to 18%...

How would I know - you might ask? :)
I have been self employed going on 30 years (ugh - dam i'm gettin old), and have owned many different businesses through my life - everything from a video rental store, to a pizza restaurant, to the real estate development and construction company that presently owns me.

One thing I can say with absolute certainty, regardless if I make 100K or 500K Net, I will pay less in taxes (percentage) than one of my employees...

To once again quote the orange buffoon...

"Believe Me"...