Exactly why I posted this! The Federal Gov't was lots smaller and was funded primarily by tariffs until the 1913 era when we got the double whammy of the Federal Reserve Bank and the Federal income tax which originally was just 1%. Other Federal funding came from taxes on alcohol, tobacco and fire arms. The ATF enforced these taxes. ATF collected these taxes as part of the Treasury Department and still does..
Trump would use tariffs aggressively as an instrument of foreign policy, GATT be damned, I guess. Cruz would use a consumption tax: the best revenue method, but without the policy bite of tariffs. They would be a potent combination.