The Court's [28] Order of August 30, 2017, instructed Defendants to prepare, among other things, a Vaughn -type index designed to assist the Court and the Plaintiff in "assess[ing] Defendants' anticipated arguments, in the form of a motion pursuant to Federal Rule of Civil Procedure 12(b)(1), regarding the availability of mandamus jurisdiction in this action." Order, ECF No. 28, at 1. Based on subsequent meet-and-confer discussions between the parties, Plaintiff repeatedly expressed concerns about the adequacy of Defendants' approach to this task. See, e.g. , Joint Status Report, ECF No. 32. After Defendants filed their [33-3] index, Plaintiff's grievances materialized in a motion to compel compliance with the Court's order.

The dissolution of Defendant Presidential Advisory Commission on Election Integrity (the "Commission") on January 3, 2018, triggered a series of additional filings. Plaintiff not only urged the Court to find that adequacy of the index remains a live issue, but also extended its request for a revised Vaughn -type index to cover the full life of the Commission. Defendants reiterated their earlier insistence that the present index is sufficient to enable the parties to move to dispositive motion briefing and facilitate the Court's evaluation of mandamus-type jurisdiction. Upon consideration of the pleadings,1 the relevant legal *232authorities, and the record as a whole, the Court DENIES Plaintiff's [35] Motion to Compel Compliance with the Court's August 30, 2017 Order and for Additional Appropriate Relief, and DENIES Plaintiff's [41] Supplemental Request for Relief in Conjunction with Plaintiff's Motion to Compel Compliance with the Court's August 30, 2017 Order.

The core issue at present is whether Plaintiff is entitled to the disclosure of any documents associated with a now-defunct commission. Proceedings in a related case may affect developments here as well. Yesterday, the Court decided that a former commissioner of the same Commission was entitled to enforcement of a preliminary injunction-issued before the Commission's termination-that compelled defendants to produce certain documents withheld from that commissioner during the Commission's short life. Dunlap v. Presidential Advisory Comm'n on Election Integrity , No. 17-cv-2361 (CKK), 2018 WL 3150217 (D.D.C. June 27, 2018), ECF No. 52 at 1-3 (citing Cummock v. Gore , 180 F.3d 282 (D.C. Cir. 1999) ). The Dunlap defendants-who are the same as Defendants in this case2 -must produce those documents by July 18, 2018. Id. at 3. The disclosure in Dunlap likely would overlap with any disclosure to which Plaintiff in this case is entitled.

Whatever the extent of would-be overlap, it is not clear that Plaintiff could independently obtain the production that it seeks in this case. Plaintiff is and always has been a member of the public, rather than a member of the Commission, and so Plaintiff cannot avail itself of Cummock , at least not directly. The question is whether Plaintiff currently has any entitlement to documents under Federal Advisory Committee Act ("FACA") § 10(b) following the Commission's termination. Plaintiff offers a string citation of case law for the proposition that it is "well settled that the 'termination' of a federal advisory committee does not moot claims for committee records under Section 10(b) of FACA." Pl.'s Resp. to Exec. Order at 1. But without further briefing, the Court is not in a position to ascertain whether the few controlling authorities cited by Plaintiff necessarily dictate the disclosure sought here. See id. (citing, e.g., Ass'n of Am. Physicians & Surgeons, Inc. v. Clinton , 997 F.2d 898, 901 n.1 (D.C. Cir. 1993) ; Nat. Res. Def. Council v. Pena , 147 F.3d 1012, 1023 (D.C. Cir. 1998) ).

Setting aside the possibility of mootness, the Court is of the view that further amplifying the Vaughn -type index is not an efficient method of proceeding in this case, particularly now that the Commission has been dissolved.3 Defendants' current version *233of the index sets forth a number of documents that they withheld from public disclosure, together with their alleged reasons for doing so. ECF No. 33-3 (containing index); see also 3d Decl. of Andrew J. Kossack, ECF No. 33-1, ¶ 12 (explaining rationales). An assessment of Plaintiff's entitlement to documents must be made at the least under FACA § 10(b), which provides that

Subject to section 552 of title 5, United States Code, the records, reports, transcripts, minutes, appendixes, working papers, drafts, studies, agenda, or other documents which were made available to or prepared for or by each advisory committee shall be available for public inspection and copying at a single location in the offices of the advisory committee or the agency to which the advisory committee reports until the advisory committee ceases to exist.

5 U.S.C. app. 2 § 10(b). Assuming arguendo that Plaintiff could be entitled to documents in this post-termination posture (i.e., after "the advisory committee ceases to exist"), Defendants' index appears adequate to satisfy the Court's need for it.4 The Court need not consult every one of the hundreds of entries to find some susceptible to a dispute under Section 10(b) that warrants merits briefing of mandamus-type jurisdiction.

For example, among the withheld documents is an "[e]mail containing agenda for July 19 meeting" sent by Andrew Kossack, Executive Director and Designated Federal Officer for the Commission, to Commission members on July 14, 2017. ECF No. 33-3, at 11 (listing Doc. 140 as allegedly exempt under rationale "(b)"). Defendants' alleged rationale for exemption from Section 10(b) and corresponding non-disclosure is that such document is an "[a]dministrative email[ ] sent to the entire Commission (e.g. , ... distributing meeting agendas ...)," and as such was "not used or prepared for the Commission's substantive work of providing collective advice to the President." 3d Decl. of Andrew J. Kossack, ECF No. 33-1, at 8 (articulating rationale (b) among list of rationales applicable to other documents).

But it is not clear on the face of Section 10(b) that an email sent by a staff member to the entire Commission containing an "agenda ... which [was] made available to or prepared for ... [an] advisory committee" can be appropriately withheld. 5 U.S.C. app. 2 § 10(b). After all, the email delivering the agenda could be construed as one of the "other documents which were made available to or prepared for ... [an] advisory committee." Id. The Court previously indicated its "preliminary view" that its assessments under Section 10(b) may require an inquiry into the intention with which Commission documents were created. Order, ECF No. 28, at 2. Mr. Kossack's email to the Commission, containing an agenda, would seem to be consistent with the Court's comment that "correspondence *234may be subject to disclosure if it includes materials intended for the committee." Id. (citing Ctr. for Biological Diversity v. Tidwell , 239 F.Supp.3d 213 (D.D.C. 2017) (Kollar-Kotelly, J.) ). Perhaps Defendants disagree with this general principle and/or with this example of a specific application. Either way, this issue has not been squarely briefed on the merits.

Accordingly, in an exercise of this Court's discretion to efficiently handle this case, the Court DENIES WITHOUT PREJUDICE Plaintiff's [35] Motion to Compel Compliance with the Court's August 30, 2017 Order and for Additional Appropriate Relief, and DENIES WITHOUT PREJUDICE Plaintiff's [41] Supplemental Request for Relief in Conjunction with Plaintiff's Motion to Compel Compliance with the Court's August 30, 2017 Order. Notwithstanding the foregoing analysis, the parties may again raise the issue of an amplified Vaughn -type index as needed in the course of the Court's resolution of the merits.

Defendants shall file a Motion to Dismiss by JULY 30, 2018 . If Defendants want to assert mootness, then they shall address the cases furnished by Plaintiff and referenced above. See Pl.'s Resp. to Exec. Order at 1. In addition to addressing Plaintiff's FACA § 10(b) claim, the scope of any such mootness argument shall encompass any other claims in Plaintiff's [1] Complaint that Defendants may argue have been mooted by the Commission's termination.

If Defendants want to maintain that every document they have withheld has been appropriately withheld under FACA § 10(b), and accordingly that the Court lacks subject-matter jurisdiction over a claim in the nature of mandamus, then their Motion to Dismiss shall provide authority for their view and address, as needed, Plaintiff's objections in prior briefing to the Vaughn -type index.

Plaintiff shall respond to the Motion to Dismiss by AUGUST 13, 2018 . Defendants' reply, if any, shall be due by AUGUST 20, 2018 .

SO ORDERED.