The Fair Tax would also likely make the IRS obsolete.
For that reason alone the government would probable not want to pass it.
It is true that liberals like big government. (Lots of gov't employees) But the Fair Tax would not do away with all those people now in the IRS.. The government will need most of those people to administrate ObamaCare.
The Fair Tax is the way to go. There would be no need of the government knowing how much money you make or where it came from. The taxation would be on CONSUMED PRODUCTS AND SERVICES. You buy something...you pay the fair tax.
That way, when a pimp buys a Rolls Royce, he pays the tax. When a drug dealer buys a yacht, he pays the tax. As it is now, these people pay little or nothing in income tax. They are crooks! To avoid the tax, they just don't report the income.
I do believe that the Fair Tax would work. I also believe it will never be implemented because our "lawmakers" love to be able to control things and grant favors to each other by way of loopholes and variations in tax rates.