In April, a significant shift in the landscape of antitrust enforcement became undeniably clear. While the U.S. Department of Justice (DOJ) settled its antitrust claims against Live Nation midway through a high-profile trial, a coalition of 34 state attorneys general continued the legal battle, ultimately securing a landmark jury verdict against the ticketing giant. This victory, which found Live Nation liable for monopolization in ticketing services and large amphitheater bookings, signals a growing assertiveness among state-level enforcers. Weeks prior, another multistate coalition successfully persuaded a court to block the proposed merger between Nexstar and Tegna, a deal that federal regulators had previously approved. These developments underscore a critical evolution for companies, particularly those whose compliance programs have historically been calibrated to federal enforcement priorities. Michelle Mantine, who leads the antitrust and competition team at Reed Smith, discussed with Corporate Compliance Insights (CCI) what these cases portend for businesses and why a solely federal-centric compliance strategy may no longer suffice.
The Live Nation case, in particular, served as a potent demonstration that state attorneys general (AGs) possess the independent authority and the will to pursue consequential antitrust litigation, often without federal backing or in parallel to federal actions. This trend suggests that for companies facing scrutiny from an active multistate coalition, state AGs may be increasingly positioned as the primary enforcers, potentially eclipsing their federal counterparts in terms of impact and scope.
The Evolving Landscape of State Antitrust Enforcement
Michelle Mantine, a leading voice in antitrust and competition law, observes that the state AG enforcement environment is in a state of flux, shifting significantly on what she describes as a "near-annual basis." Her firm, Reed Smith, has developed a specialized tracker tool to help companies navigate these rapidly evolving developments, which Mantine argues are outpacing the adaptation of many corporate compliance programs.
"Many companies have antitrust compliance programs that were designed primarily with federal enforcement and private litigation risk in mind," Mantine stated in a written Q&A with CCI. "Those programs may not adequately account for the distinct theories of harm, lower evidentiary thresholds and broader remedial authority that state AGs can bring to bear." This highlights a critical gap: federal antitrust law, while foundational, may not fully encompass the nuances and distinct approaches adopted by state attorneys general.
Industries Under the Microscope
Several key industries are currently facing heightened scrutiny from state AGs, driven by concerns over consumer welfare, market fairness, and economic impact within their respective states.
- Healthcare and Pharmaceuticals: This sector has been a particular focus, with state AGs actively pursuing cases related to drug pricing, anticompetitive "pay-for-delay" agreements, and monopolistic practices among hospital systems and pharmacy benefit managers. The direct harm to consumers through inflated prices provides a strong consumer-protection rationale for these enforcement actions. For example, investigations into alleged price-fixing of generic drugs have involved multiple states, aiming to recoup costs passed on to consumers.
- Technology: The dominant tech giants are under continuous review for issues concerning platform dominance, data privacy practices, and the alleged leveraging of market power to stifle competition. State AGs have shown a willingness to initiate standalone actions or join multistate coalitions to address conduct perceived as detrimental to consumers and small businesses. This includes investigations into app store policies, search engine algorithms, and data monetization practices.
- Banking and Financial Services: Enforcement in this area typically targets anticompetitive fee structures, predatory lending practices, and mergers that could diminish competition in local markets. State AGs are increasingly scrutinizing the consolidation of financial institutions and their impact on access to credit and financial services, particularly in rural or underserved communities.
- Energy: Energy markets have also drawn significant attention, with a focus on pricing practices and alleged market manipulation. Investigations into fuel price gouging or coordinated actions that artificially inflate energy costs are common.
Across these sectors, the typical manifestations of enforcement activity include Civil Investigative Demands (CIDs), extensive multistate investigations, and ultimately, consent decrees or protracted litigation seeking injunctive relief, restitution for affected parties, and substantial civil penalties. The financial implications of such actions can be severe, often running into the millions or even billions of dollars.
Legislative Empowerment of State Attorneys General
A significant driver of this increased state-level enforcement is the ongoing legislative expansion of AGs’ investigative and enforcement powers. Numerous states are enacting or considering new antitrust statutes that diverge from or supplement the federal framework. These legislative changes can lower the bar for proving antitrust violations, introduce state-specific theories of harm, and grant broader remedial powers and penalties than those available under federal law.
For instance, some states have introduced targeted legislation aimed at specific industries, such as pharmaceutical pricing or restrictions on non-compete agreements for certain professions. Other legislative efforts have focused on bolstering the investigative tools available to AGs, such as expanding subpoena authority and CID powers, thereby streamlining the initiation and progression of investigations. The speed at which this legislative landscape is transforming is notable, with key states seeing shifts on an almost annual basis. This necessitates that companies not only stay abreast of existing laws but also closely monitor pending legislation that could rapidly alter their risk profiles.
The Genesis of Multistate Coalition Actions
Multistate coalition actions are typically instigated by conduct that has a widespread impact on consumers across multiple jurisdictions. Common triggers include:
- High-Profile Mergers and Acquisitions: Proposed mergers that raise significant antitrust concerns, even if cleared by federal regulators, can prompt a coalition of state AGs to launch their own review.
- Public Reports and Media Coverage: Investigations are often sparked by media exposés or public reports detailing potentially anticompetitive business practices.
- Whistleblower Complaints: Internal whistleblowers can provide crucial information that initiates multistate investigations.
- Spillover from Federal Investigations: When federal agencies like the DOJ or the Federal Trade Commission (FTC) initiate an investigation or file a lawsuit, state AGs frequently conduct parallel reviews. If they perceive the federal response as inadequate or failing to address state-specific harms, they may form a coalition to pursue the matter further.
The formation of these coalitions often begins with one or a few state AG offices identifying potential anticompetitive conduct and reaching out to their counterparts in other states. The National Association of Attorneys General (NAAG) plays a crucial facilitating role, providing a platform for coordination and information sharing among the states. Once a sufficient number of states express interest, a lead state or a group of lead states typically takes charge of the investigation, issues CIDs, and negotiates on behalf of the entire coalition. Companies can also inadvertently draw attention through public statements, regulatory filings, or industry practices that become widely known, even if they believe their conduct to be pro-competitive.

Bipartisan Consensus on Antitrust
In a political climate often characterized by deep partisan divides, antitrust enforcement stands out as an area where a rare bipartisan consensus exists among state attorneys general. This common ground is rooted in fundamental principles of consumer welfare and market fairness, which resonate across the political spectrum. Whether driven by concerns for free markets, the prevention of corporate overreach, or the protection of small businesses and consumers, or by a focus on issues of inequality, corporate power, and access to essential goods and services, the underlying analytical framework remains consistent: anticompetitive conduct harms consumers and markets. This shared understanding facilitates cooperation between AGs from both red and blue states.
Adapting Compliance Programs for a Multistate Reality
Navigating the complexities of 50 distinct state AG offices, each with its own priorities and statutory authority, presents a formidable challenge for corporate compliance programs. Mantine emphasizes the need for a strategy that is both centralized in its core principles and flexible in its implementation.
"At the foundational level, a company should ensure that its antitrust compliance program is designed to comply with the most stringent state requirements, not merely federal law," she advises. This necessitates investing in robust monitoring tools and intelligence resources to track enforcement trends, legislative developments, and public statements emanating from state AG offices nationwide.
Furthermore, companies must conduct regular risk assessments tailored to the specific states in which they operate. For businesses with significant operations in states known for aggressive antitrust enforcement—such as California, New York, Texas, or Ohio—it is crucial to calibrate compliance training and internal review processes to align with the priorities of those particular offices. This proactive approach helps mitigate risks before they escalate into formal investigations.
The Distinct Nature of Responding to Multistate Coalitions
Responding to a multistate coalition investigation is a significantly different undertaking than addressing a single federal investigation. Companies that approach multistate actions with a federal-centric mindset often find themselves at a strategic disadvantage.
The most immediate practical difference lies in the multiplicity of decision-makers. Whereas a federal investigation involves a single agency, such as the DOJ or the FTC, with a clear chain of command, a multistate coalition means engaging with dozens of AG offices. Each of these offices operates with its own political considerations, resource constraints, and legal authority. From a strategic perspective, companies facing such a coalition must prioritize identifying the lead states early and invest heavily in understanding their specific priorities and concerns. This allows for a more focused and effective response, rather than a diffuse effort attempting to satisfy numerous disparate demands.
Proactive Measures for High-Risk Sectors
For companies operating in high-risk sectors like healthcare and technology, Mantine stresses the paramount importance of conducting proactive, candid internal assessments of their competitive practices, specifically with state AG enforcement in mind. Many existing antitrust compliance programs, as noted, were primarily built to address federal enforcement and private litigation risks. These may fall short in accounting for the distinct theories of harm, potentially lower evidentiary thresholds, and the broader remedial authority that state AGs can wield.
Companies should be asking themselves challenging questions: Are our pricing strategies defensible not only under federal law but also under the specific antitrust statutes of the states in which we operate? Do our contracts contain provisions—such as non-compete clauses, exclusivity agreements, or most-favored-nation stipulations—that could attract state AG scrutiny? Are we diligently monitoring legislative developments that could swiftly alter our risk profile?
Beyond self-assessment, investing in relationships and intelligence gathering is crucial. This includes active engagement with industry trade associations, retaining legal counsel with specific expertise in state AG investigations, and developing internal capabilities to respond swiftly and effectively when an investigation arises.
Future Frontiers of Antitrust Enforcement
Looking ahead, Mantine anticipates that several emerging industries and business practices will become the next major focal points for state AG coalition enforcement.
- Artificial Intelligence (AI) and Algorithmic Pricing: As companies increasingly deploy AI-driven tools for pricing, market allocation, and competitive decision-making, state AGs are likely to scrutinize these technologies for potential facilitation of tacit collusion or other anticompetitive outcomes. The inherent opacity of algorithmic decision-making presents both a novel enforcement challenge and a politically appealing target for regulators.
- Private Equity in Healthcare Consolidation: The role of private equity in consolidating the healthcare sector is drawing increasing attention. State AGs have already begun examining the competitive effects of these acquisitions, and this trend is expected to intensify as consolidation continues and its impact on pricing and quality of care becomes more apparent to consumers and policymakers.
- Labor Markets and Worker Mobility: Labor markets and worker mobility are emerging as significant areas of state AG antitrust focus. Several states have already enacted legislation to restrict non-compete agreements, and state AGs have initiated enforcement actions challenging no-poach agreements and other practices that suppress wages or limit job mobility for workers.
The growing assertiveness and expanding authority of state attorneys general represent a fundamental shift in the antitrust enforcement landscape. Companies must adapt their compliance strategies to this evolving reality, recognizing that federal oversight alone is no longer a sufficient shield against potential liability. A comprehensive, state-aware approach is now essential for navigating the complex and dynamic world of antitrust law.
