According to @iampaulgrewal, a per curiam opinion by the U.S. Court of Appeals for the Federal Circuit in a presidential tariff case contains an important ruling on the major questions doctrine (Source: @iampaulgrewal on X, Aug 31, 2025). He states the CAFC’s reasoning rejects what he describes as the Gensler SEC’s attempt to assume Congress’s authority to regulate crypto, indicating potential constraints on the agency without clear legislation (Source: @iampaulgrewal on X, Aug 31, 2025). The post does not include the case name, docket, or any crypto-specific holding, so traders should treat this as a legal interpretation rather than a direct crypto ruling when assessing regulatory risk (Source: @iampaulgrewal on X, Aug 31, 2025).