Republican AGs Open Probes Into Fitch, Moody's, S&P Over ESG Rating Methods

Republican state attorneys general from multiple jurisdictions have launched coordinated investigations into Fitch Ratings, Moody's, and S&P Global over their incorporation of environmental, social, and governance factors into credit assessments. The probes target the three agencies that rate roughly $50 trillion in outstanding U.S. debt securities, from municipal bonds to structured products.

The inquiries follow a pattern established in 2023 when Missouri and Louisiana AGs first sought documents from rating agencies regarding ESG methodologies. This expansion signals a coordinated effort across red-state legal offices to pressure financial intermediaries on climate-related disclosures. The agencies have not disclosed which states are participating or the specific scope of document requests. Worth noting: these are civil investigatory demands, not enforcement actions, but they carry subpoena power and impose compliance costs on firms already navigating split regulatory environments.

The timing matters because rating agency methodologies directly affect borrowing costs for states, municipalities, and corporations. When Moody's announced in 2021 it would systematically incorporate climate risks into credit opinions, it triggered immediate pushback from energy-state treasurers. Now attorneys general are using consumer protection statutes to question whether ESG considerations constitute material credit factors or ideological preferences dressed as financial analysis. The agencies face a structural problem: ignore physical climate risks and face lawsuits from bondholders after defaults; incorporate them explicitly and face political interference. S&P and Fitch have both published climate-risk frameworks that treat environmental factors as credit-relevant only when they affect an issuer's ability to repay. Moody's goes further, embedding ESG scores into its broader credit assessments.

The pressure arrives as the U.S. federal debt approaches $39 trillion and rating agencies face renewed questions about their core function. Fitch downgraded U.S. sovereign debt from AAA to AA+ in August 2023, citing governance deterioration and fiscal trajectory. S&P had downgraded in 2011 after the debt ceiling standoff. The agencies occupy a regulatory-protected oligopoly—Nationally Recognized Statistical Rating Organizations under SEC rules—yet face criticism from both sides: progressive advocates say they underweight climate transition risk, while conservative officials claim they inject politics into financial metrics. The investigations add legal risk to an already difficult operating environment. If AGs find that agencies applied non-credit factors to rate government or corporate debt, they could argue securities were mis-priced, opening theories of investor harm under state consumer protection or securities laws.

Operators should watch for document productions in Q2 2025 and whether agencies modify disclosure language around ESG methodology. Fitch and Moody's have already pulled back public ESG scoring in certain asset classes under prior political pressure. The more significant risk is bifurcation: one set of ratings for red-state issuers, another for blue-state, creating a two-tier information environment that increases uncertainty and capital costs across the board.

The $13 trillion U.S. municipal bond market will clarify which governance model wins. States with Republican AGs hold roughly $4 trillion in outstanding muni debt. If rating agencies remove explicit climate-risk language to avoid legal entanglement, they increase their liability to investors in Florida or Texas coastal bonds who later claim they weren't warned. That is the trade: political risk now, credit risk later.