Montana senator Jon Tester says he will defeat the GOP's 'awful plan' for a national sales tax

[patphil]

16. Consumption based taxes are never fair.

Lower and middle class people spend the overwhelming majority of their income to pay daily expenses. Their federal tax bill is significantly less than 20%. This is effectively a huge tax increase for them.
On the other hand, the rich only spend a small part of their income for the same kinds of things. Much of their income goes into investments, savings, or actually leaves the country. They will see a significant tax decrease from a sales tax based system.
Of course this is exactly what the Republicans want, since they are rewarded so very well by their rich donors whenever they pass a big tax break for them.
Just simplify and enforce the current system.