The Federal Circuit has issued a significant ruling in a case concerning the major questions doctrine, which has implications for the regulation of cryptocurrency transactions. The court's per curiam opinion in the POTUS tariff case challenges the SEC's authority under Chair Gary Gensler to regulate crypto transactions as securities, suggesting that such regulatory power lies with Congress. This decision could impact the SEC's current approach to cryptocurrency oversight, as it emphasizes the need for legislative clarity and authority in regulating emerging financial technologies. The ruling underscores the ongoing debate over the appropriate regulatory framework for digital assets and the balance of power between federal agencies and Congress.