2026 Membership Book FINAL

USCA4 Appeal: 25-1892

Doc: 16

Filed: 10/15/2025

Pg: 23 of 97

contemplate that there will be a need for any supplementary regulation by the States.” Id. at 36.

Courts immediately understood the preemptive effect of those

amendments. Writing for the Second Circuit, Judge Friendly explained that

the CEA “preempts the application of state law” regarding trading on federal exchanges. Leist v. Simplot , 638 F.2d 283, 322 (2d Cir. 1980). The CFTC

likewise understood that the amendments preempted state laws deeming

futures contracts to be “illegal gambling contracts.” Kevin T. Van Wart, Preemption and the Commodity Exchange Act , 58 Chi.-Kent L. Rev. 657,

700 (1982) (quotation omitted).

The 1974 amendments did not preempt all state regulation of

derivatives trading. Section 2(a) made clear that, beyond the CFTC’s

“exclusive jurisdiction” over trading on federal exchanges, the CEA did not

“supersede or limit the jurisdiction” of “ regulatory authorities under the laws

… of any State” or “restrict [state] authorities from carrying out their duties

and responsibilities in accordance with such laws. ” 7 U.S.C. § 2(a)(1)(A). C. CEA Amendments Underscore The CFTC’s Exclusive Jurisdiction. After preempting state regulation in 1974, Congress in 1978 sought to grant states a limited role in combatting commodities fraud. Congress amended the CEA to authorize states “ to bring parens patriae actions,

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