Repatriating dollars - if there were no tax on income, billions would come back.. and business would want to be headquartered here.
border-adjustable taxation - if the nrst were in place, there would be an excise on imports AND exports would leave the US without embedded tax costs.
fairness - the nrst puts the same marginal rate on everyone. Rich, poor, illegal, bald, skinny, etc. No more favoring one group over another [cough... illegals... cough]. And the prebate reduces the problem of taxing necessities
the list goes on....
FRom you lips to Trump’s ear, Principled!