The Section 301 tariffs undoubtedly implicate the major questions doctrine. The Tax Foundation estimates the Section 301 tariffs will impose some $629 billion in new taxes on Americans over the next decade. These potential effects are larger than those of any of the previous policies the Supreme Court has determined to be major questions, with the exception of the IEEPA tariffs themselves. (In that case, three of the six justices in the majority relied on the major questions doctrine.) There is, pretty obviously, no meaningful floor or ceiling under the administration's approach to Section 301.