I agree we should combat waste and corruption, but a national sales tax doesn't combat anything, other than the wallets of the lower and middle class. It stands to reason that regardless of where the money comes from, the waste and corruption will get to it first unless you combat the waste and corruption headlong. We should combat the waste first and minimize. Don't throw out the baby with the bathwater. No, actually it's been amended to be legally enforced.
Taxes have to be payed.
Money is needed to run the country. It's got to come from somebody. A National Retail Sales Tax will accomplish this and more. A sales tax is far more oppressive than an federal income tax. The IRS is wildly ineffecient.