Another ‘constitutional, practical, workable, politically and economically viable way’ to do it is to abolish about half the agencies in the Federal budget, that should cut the fat quite nicely.... for starters.
How you spend, and how you tax, are two different matters.
But, in either case, you have to have a practical way to get from here to there. I don’t see Ron Paul offering that.
“Modest excise taxes” are not going to get the job done, even if you’ve managed to slay the spending dragon.
His “vision” is an impractical one, with little connection to reality.
Which is one of the reasons his proposals in the Congress almost never go anywhere.