We're back from vacation and chipping away at the summer backlog. Before the substance: listeners weigh in on our AI-generated cover art, Claude's new prediction scorecard grades our respective forecasting records, and Justices Kagan and Barrett take the Court's budget request — and some docket-terminology talk — to Congress. Then we spend the rest of the show on T.M. v. University of Maryland Medical System Corporation, in which the Rooker-Feldman doctrine, pronounced dead in the Green Bag two decades ago, proves alive enough to reach state-court judgments still on appeal. We try to figure out what the doctrine actually is, whether § 1257 or § 1331 is doing the work, and why the Court's committed formalists split down the middle. Along the way: insider trading as a University of Chicago virtue, a concurrence that may be playing a long game on federal habeas, and a dissent that's "exactly correct and not the law." Highlights [00:00:21] Opening: back from vacation, episode 26 of the season, chasing the all-time record of 29 [00:01:15] Listener verdict on the AI back-catalog covers — Proximity Mines in the Facility gets its due, and no, we're not commissioning an artist [00:03:33] Will's Kant remarks draw "especially strenuous criticism"; he declines to recant [00:04:38] Claude's prediction scorecard grades the back catalog: Dan 82.4%, Will 71.2% — hedged singles vs. high-variance swings [00:07:06] Are prediction markets just gambling? Kalshi, Manifold, and insider trading as a University of Chicago virtue [00:10:16] Justices Kagan and Barrett testify before the Appropriations Committees: the security budget, life with a detail, and a remembrance of Lindsey Graham [00:14:03] Kagan on the "terminology nightmare" — shadow vs. emergency vs. interim docket — and why the shadow docket "is not currently shadowy" [00:16:14] The main event: T.M. v. University of Maryland Medical System Corporation, a fed-courts-class case if there ever was one [00:17:44] Doctrine origins: Rooker v. Fidelity Trust, District of Columbia Court of Appeals v. Feldman, Exxon Mobil v. Saudi Basic's attempt to bury them, and Sam Bray's Green Bag obituary [00:20:35] What Rooker actually held: no bill in equity to void a state judgment — only the Supreme Court has appellate jurisdiction over state courts [00:25:17] The unusual lineup: Sotomayor writing for Thomas, Alito, Kavanaugh, and Jackson; Barrett in dissent with the Chief, Kagan, and Gorsuch [00:28:53] Where does the doctrine come from — § 1257 exclusivity, § 1331 "original" jurisdiction, or something constitutional about "inferior" courts? [00:38:42] Will's alternative: you're either in appellate mode or collateral estoppel mode — and the Full Faith and Credit Act already covers this [00:42:44] The Thomas concurrence: Rooker "correct as an original matter" — and footnote 4's possible long game on federal habeas [00:46:34] The puzzle of the missing Feldman: Thomas's concurrence is almost entirely about Rooker [00:48:06] The Barrett dissent — "exactly correct and not the law" — and Rooker-Feldman given an inch [00:51:49] What goes in the fed courts supplement, and whether Hart and Wechsler needs a bigger Rooker-Feldman chapter again [00:53:25] Sign-off: an efficient episode; browse the back-catalog art at dividedargument.com Relevant links Cases T.M. v. University of Maryland Medical System Corp. — slip opinion Rooker v. Fidelity Trust Co., 263 U.S. 413 (1923) District of Columbia Court of Appeals v. Feldman, 460 U.S. 462 (1983) Exxon Mobil Corp. v. Saudi Basic Industries Corp., 544 U.S. 280 (2005) Prentis v. Atlantic Coast Line Co., 211 U.S. 210 (1908) Commentary & articles Samuel Bray, "Rooker Feldman (1923–2006)," 9 Green Bag 2d (2006) — the obituary William Baude, "The Interim Docket" (SSRN, forthcoming U. Chi. L. Rev.) — now with Justice Kagan's terminology testimony incorporated David Lat, "Justices Kagan And Barrett Are The Spokeswomen SCOTUS Needs Right Now" (Original Jurisdiction) SCOTUSblog, "Justices Kagan and Barrett testify before Congress" Other The custom back-catalog episode art — tell us your favorites