On April 24, a federal judge will rule on a permanent injunction motion in the most consequential religious-liberty lawsuit of the voucher era. The case is a First Amendment challenge to the Texas religious-school voucher program. The brief docket closes this week.

Four days before the hearing, the amicus — "friend of the court" — briefs are piling up from the usual roster: the Foundation for Defense of Democracies, the Middle East Forum, the Center for Security Policy, the American Law and Justice Center, plus a supporting cast of smaller policy shops and a coordinated brief from a bloc of House members. The briefs argue that the Texas voucher program is constitutionally permissible under Establishment Clause doctrine and warn the court against a broad injunction that could cascade into a multi-state designation fight.

The filers are familiar. The funders behind them are more so. This is the amicus economy, and the April 24 docket is its highest-leverage event of the year.

The Brief Bloc

The amicus briefs expected or filed on the docket, according to the Texas Eastern District's ECF system and Law360's docket coverage, cluster into three groups.

The first is a policy-think-tank bloc. The Foundation for Defense of Democracies (FDD) has, per its public filings, produced sustained policy research on the legal doctrines at issue — specifically the line between religious accommodation and Establishment Clause violation. The Middle East Forum (MEF) has filed supporting briefs in parallel cases in Florida and Missouri. The Center for Security Policy (CSP) has been active on the same docket trail since 2019. All three organizations receive grant funding from donor-advised funds disclosed in IRS 990s filed annually.

The second is a congressional-signatories bloc. Sources familiar with the brief staging expect a joint amicus signed by members of the House "Sharia-Free Caucus" bloc, chaired by Reps. Chip Roy (R-TX) and Keith Self (R-TX). According to the caucus's public whip list, the group has added 24 members in the four weeks before April 10 and now spans 60 House members. A congressional-signatory amicus does not carry judicial weight by itself — courts do not treat legislator opinions as binding — but it signals the political coalition behind the litigation strategy.

The third is a donor-advised-fund bloc. Smaller 501(c)(3) organizations funded through donor-advised fund disbursements — the National Philanthropic Trust, Fidelity Charitable, Schwab Charitable, and the Lynde and Harry Bradley Foundation — are staging briefs under names most readers would not recognize.

The $162 Million Layer

In March, Bastion Daily traced $162 million in donor-advised-fund disbursements in fiscal year 2024 that flowed to the constellation of policy organizations active on the religious-designation litigation track. That figure — sourced from IRS Form 990 filings and donor-advised-fund annual reports — is not itself an amicus tally. It is the upstream layer that funds the research, the op-eds, the congressional testimony, and the amicus briefs now piling up on the Texas docket.

What makes donor-advised funds the preferred vehicle is anonymity. A donor who contributes to Fidelity Charitable and directs a grant to FDD does not appear in FDD's 990 disclosures. The grant appears as a contribution from Fidelity. The donor layer is insulated from public visibility. That arrangement is lawful. It is also why, when Bastion Daily asked for the underlying donor lists, none of the three largest DAF sponsors produced them.

The $162 million figure is an annualized disbursement total, not an April 24 amicus tally. But the organizations filing on April 24 are the same organizations named in the disbursement traces.

The Pentagon Contractor Line

Separate from the donor-advised-fund layer, Bastion Daily reported Friday that $7 million in Pentagon contractor grants has flowed to think tanks publishing in support of Section 702's clean reauthorization. Three of those think tanks — FDD, Hudson Institute, and Heritage Foundation — are also active on the April 24 amicus docket.

The overlap matters. The question of whether a religious-designation regime is constitutionally permissible and the question of whether Section 702 should be reauthorized without a warrant requirement are, on their face, unrelated. But the institutional infrastructure producing legal arguments on both questions is the same infrastructure, funded by the same overlapping donor streams, staffed by many of the same legal academics, and filing briefs on the same dockets.

That is what "follow the money" looks like in the policy-brief era. Not a bag under a table. A 990 disclosure, traced forward, showing a cluster of nonprofits drawing from a common DAF pool and filing on overlapping dockets.

What the Court Should Weigh

A federal district court is not required to weigh the funding layer of an amicus filer. The brief either persuades on its constitutional argument or it does not. But the transparency of the funding layer is itself a question for the court to consider in weighing the independence of the analysis.

Supreme Court Rule 37.6 requires amicus filers at the Supreme Court level to disclose whether counsel or a party funded preparation of the brief and whether any entity made a monetary contribution to the brief specifically. Federal district courts are not uniformly bound by Rule 37.6, and the Texas Eastern District has not adopted a parallel standing order. That is a gap. The April 24 amicus docket is the case for the standing order.

The Names

The amicus filers are, per docket entries and advance filings:

  • Foundation for Defense of Democracies — brief argues the Texas program is narrowly tailored under existing Establishment Clause doctrine.
  • Middle East Forum — filed a coordinated brief in parallel Florida litigation; Texas brief expected this week.
  • Center for Security Policy — filing a supplemental brief on state-designation cascade risk.
  • American Law and Justice Center — on the docket.
  • "Sharia-Free Caucus" joint legislator amicus — expected with ~24 House signers.

This roster will expand in the final 48 hours before the hearing. The brief docket remains open until 5 p.m. Central on Tuesday.

Why It Matters

A federal court ruling on the Texas voucher-program injunction will shape state-level religious-designation policy across four additional state dockets. The amicus briefs filed this week are the policy-coalition argument for one outcome. The funders who paid for those briefs are a question the court can weigh and the public is entitled to know. The $162 million donor-advised-fund disbursement layer is not rumor. It is an annualized aggregation of IRS-disclosed filings. The April 24 docket is where the amicus economy meets the constitutional ruling. Both deserve to be on the public record.