From YouTube:
Although it may seem counterintuitive, raising taxes on the rich does not actually increase the amount of taxes the government collects. How could this possibly be the case? According to Professor Antony Davies, it is because the many loopholes in federal income taxes, capital gains taxes, and many other taxes, enable people to partially avoid these taxes. Perhaps instead of discussing how to raise tax revenues, we should spend our energy simplifying the tax code. This would make it more difficult for people to avoid taxes and, Davies says, “The less time and money we spend trying to work around a complex tax code, the more time and money we will have available to put to more productive uses.”