Owen J. Roberts, United States v. Kansas Flour Mills Corporation…
“ As we have said, there is respectable authority for the position that tax clauses in private contracts do not reach a judicial decision of invalidity of the statute. We think, however, these decisions have no application in the present instance. Here legislation recognizing the decision in United States v. Butler, supra, and imposing taxes on the enrichment of those who passed on the amount of the tax without having to pay it, may properly be said to have been a change of the tax by Congress within the terms of the contracts. ”
