Good idea DUmmy but, not for the reasons you think.
If we set a tax rate for the rich that can't be changed up or down, in 2 years you won't be able to raise taxes on them even more.
I know exactly how you goons operate. If we raise taxes on the rich this year you will only want more next year and more the next and so forth. So let's do it, let's set tax rates on the rich at a fair rate and then you can shut the **** up about raising taxes from now on.