With an extra hidden secret beneath it. That's true for effective taxes on corporate income - if loopholes exist to allow corporations to offshore their money easily and dodge those taxes they're going to do that so they can pull the money out (or, alternatively, temporarily stash their money abroad since the US has a tax holiday every decade).

Honestly, the tax holidays royally piss me off especially coming from a party that "embraces law and order" - it's essentially like pardoning a bunch of robbers - except the actual robbers stole far less money.