Over the last 25 years, every country in the developed world has made significant strides in lowering the corporate tax rate - except for the United States. The good people at Economics 21 put together a handy chart to illustrate this:
The corporate tax rate is the worst tax in the entire tax code. It stifles growth and innovation and does little to combat inequality. It's taken out of the paychecks of workers and investors, not CEOs or profits.
In a just world, America's corporate tax code would have fallen faster than Western Europe's. There is much work to be done.