Jia M. Cobb
How Judge Cobb decides
Patterns drawn from this judge's own signed orders. Every observation links to the order it came from.
What persuades
In FOIA she enforces the statutory 'reasonably describes' threshold at the pleading stage: a request for 'all records related to' a policy is too vague where the agency cannot determine precisely which records are sought, and she will dismiss under Rule 12(b)(6) rather than require a search.
“An agency’s obligation to produce records under FOIA is only triggered when a request “reasonably describes” those records. ... The Court agrees and will therefore GRANT the State Department’s motion to dismiss.”
She enforces preclusion firmly against repeat filers: a litigant cannot relitigate, suit after suit, a conviction and forfeiture already upheld, and such a complaint will be dismissed with prejudice on res judicata / claim-preclusion grounds.
“Ndoromo cannot continue to bring the same lawsuit over and over again. Like his prior cases, this case will also be dismissed. And with prejudice.”
Procedural preferences
She holds represented parties to Local Civil Rule 7(b): a motion that draws no timely opposition may be granted as conceded, and she will dismiss (without prejudice) where counsel simply fails to respond -- a strong signal to litigants before her to meet deadlines.
“Because Plaintiffs have failed to respond to Defendants’ motions to dismiss, the Court GRANTS Defendants’ motions as conceded and DISMISSES the case without prejudice.”
She resolves cases on the narrowest dispositive ground and declines to reach unnecessary issues: she decided an APA/Back-Pay dismissal on jurisdiction without reaching qualified immunity, and dismissed a defamation suit on limitations/immunity 'most obvious to the Court' rather than canvassing every defect.
“the Court grants FINRA’s Motion on the grounds most obvious to the Court: First, she filed her Complaint too late ... And second, even if her claim was timely, FINRA is entitled to arbitral immunity.”
Cautions
This 8-opinion, N=10-motion sample is small and docket records-surfaced, and it skews DEFENDANT/MOVANT-FAVORABLE (motions to dismiss granted largely on procedural/jurisdictional grounds: FOIA reasonable-description, res judicata, Local-Rule-7(b) concession, mootness, limitations/immunity). It is NOT a merits tendency. Critically, it does NOT capture her highest-profile PLAINTIFF-FAVORABLE rulings: the August 2025 84-page decision blocking the Trump administration's rapid deportation of humanitarian-parole recipients, and the Lisa Cook v. Trump Federal Reserve removal case; she also presided over the Ryan Samsel January 6 trial and the J6-FBI-names suits. Her pre-bench career was as a public defender and a plaintiff-side civil-rights partner.
“In a ruling earlier this month, Cobb blocked the Trump administration’s attempt to rapidly deport hundreds of thousands of immigrants who had fled violence or oppression in their home countries.”
Motion outcomes
Counted from classified signed orders only. Percentages are shown only where the sample is large enough to be meaningful; smaller samples are reported as raw counts.
| Motions to dismiss N = 5 |
Granted: 4Granted in part: 1 | counts only |
| Summary judgment N = 4 |
Granted: 2Granted in part: 2 | counts only |
| Motion for leave to amend N = 1 |
Denied: 1 | counts only |
A "1 of 1" is one ruling, not a tendency. Treat small samples as illustrative, not predictive.
Signed rulings
A grounded sample of orders signed by this judge, with the verbatim dispositive language.
“ORDERED that Defendants’ Motion for Summary Judgment, ECF 21, is GRANTED and the case is DISMISSED.”
“the Court PARTIALLY GRANTS and PARTIALLY DENIES Defendant’s Motion for Summary Judgment. ECF 79.”
“the Court PARTIALLY GRANTS and PARTIALLY DENIES Plaintiff’s Cross-Motion for Summary Judgment. ECF 80. The Court orders Defendant to release all responsive materials that were withheld solely pursuant to the deliberative process privilege, with the exception of the specific records identified in the previous paragraph.”
“Because Titan has demonstrated that it is entitled to summary judgment, the Court will GRANT its motion.”
“The Court agrees and will therefore GRANT the State Department’s motion to dismiss.”
“Ndoromo cannot continue to bring the same lawsuit over and over again. Like his prior cases, this case will also be dismissed. And with prejudice.”
“Because Plaintiffs have failed to respond to Defendants’ motions to dismiss, the Court GRANTS Defendants’ motions as conceded and DISMISSES the case without prejudice.”
“The VA’s $128,000 offset was therefore proper, and the Court GRANTS the VA’s motion to dismiss the case (with the exception of Count XII) for lack of jurisdiction pursuant to Federal Rule of Civil Procedure 12(b)(1).”
“the Court grants FINRA’s Motion on the grounds most obvious to the Court: First, she filed her Complaint too late, after the statute of limitations expired for her claim. And second, even if her claim was timely, FINRA is entitled to arbitral immunity.”
“The Court also denies Seltzer’s various motions to amend her Complaint (ECF 19, 20, 29) because the proposed amendments do not cure the deficiencies of her suit or otherwise state viable claims.”
Caseload & timing
From public federal docket records for this judge.
From the reasoning-layer sample plus a 2025 Politico profile (NOT a counted distribution): her docket runs across FOIA (Emery v. DOJ; Friends of the River v. Army Corps; Judicial Watch v. State), FSIA/international arbitration-award enforcement (Titan Consortium v. Argentine Republic), federal-employment / Back Pay Act (Hawkins v. Wilkie), RFRA/Title VII (Etzenhouser v. Vilsack), pro se civil and defamation matters (Ndoromo v. Garland; Seltzer v. FINRA), high-profile administration-policy challenges (the 2025 humanitarian-parole/deportation injunction; Lisa Cook v. Trump Federal Reserve removal), and significant criminal matters (the Ryan Samsel January 6 trial). As Biden's first D.D.C. appointee and a former public defender / civil-rights litigator, she draws a broad mix of the court's nationally significant cases.