FTC Wins First Merger Case Using New Federal Court-Only Litigation Strategy, Signaling End of Administrative Court Merger Challenges

On August 14, 2026, the Federal Trade Commission secured a permanent injunction blocking Henkel AG's proposed $725 million acquisition of Liquid Nails, a major rival to its own Loctite brand. The ruling by the Southern District of New York represents a landmark victory for the agency, not just for preserving competition in the highly concentrated construction adhesives market, but for validating a radical shift in how the government litigates antitrust cases. For the first time, the FTC successfully deployed its new "federal court-only" merger litigation strategy, abandoning its historical reliance on in-house administrative courts to secure a final judgment directly from a federal judge. The decision signals a profound transformation in US antitrust enforcement, proving that the agency can successfully block major corporate consolidations without relying on the procedural advantages of its traditional administrative tribunals.[1][3]

For decades, the FTC employed a unique "two-track" enforcement strategy when challenging corporate mergers. Under this historical model, the agency would file a complaint in a US district court seeking a preliminary injunction to pause the transaction. Simultaneously, it would initiate a "Part 3" proceeding to try the actual merits of the antitrust case before its own in-house administrative law judge. This dual approach was rooted in the agency's enabling statute, designed to allow specialized administrative experts to deliberate on complex market dynamics while a federal judge simply ensured the market remained frozen in the interim. In practice, however, the preliminary federal injunction often served as the final word on a deal's fate; whichever party lost the preliminary skirmish typically abandoned the merger or dropped the challenge, rendering the subsequent administrative trial largely redundant.[4][5]

Corporate dealmakers and defense counsel have long criticized this two-track system, arguing that it provided the FTC with an unfair structural advantage. Because the agency only needed to convince a federal judge that a preliminary pause was in the "public interest"—a lower evidentiary threshold than proving a definitive antitrust violation—it could effectively kill deals without ever fully proving its case on the merits. Furthermore, if the FTC lost in federal court, it retained the authority to continue litigating the merger administratively, giving the agency what critics described as "two bites at the apple." This procedural leverage forced many companies to walk away from acquisitions rather than endure the immense cost and uncertainty of fighting a multi-front legal battle against the government.[4][5][6]

However, the legal landscape surrounding administrative courts has shifted dramatically in recent years, exposing the FTC's traditional strategy to existential threats. A barrage of constitutional challenges aimed at the broader administrative state has steadily eroded the authority of in-house tribunals across the federal government. Following landmark Supreme Court rulings like SEC v. Jarkesy and Axon Enterprise, which expanded the ability of private parties to challenge the constitutionality of agency structures in federal court, the FTC's internal adjudication process became highly vulnerable. The pressure peaked in early 2026 when the Fifth Circuit Court of Appeals held that certain FTC administrative adjudications regarding deceptive advertising were fundamentally unconstitutional, raising immediate red flags about the viability of the agency's Part 3 merger trials.[3][5][6]

Recognizing this mounting legal peril, the FTC, under the leadership of Chair Andrew Ferguson, announced a strategic pivot designed to insulate its enforcement actions from constitutional attacks. The agency committed to bringing future merger challenges exclusively in federal courts, seeking permanent injunctions directly and bypassing the Part 3 administrative process entirely. This paradigm shift meant the FTC would voluntarily surrender its home-court advantage and subject itself to the same rigorous federal evidentiary standards faced by the Department of Justice's Antitrust Division. By eliminating the administrative track, the FTC aimed to restore credibility to its enforcement actions, ensuring that the final determiner of an antitrust violation was an independent Article III judge rather than an agency appointee.[3][4][6]

The Henkel case served as the inaugural test of this new federal court-only paradigm. Filed in December 2025, the FTC's complaint alleged that Henkel's acquisition of Liquid Nails would unlawfully combine the two largest brands of construction adhesives sold at major domestic retailers like The Home Depot and Lowe's. The agency argued that retail shelves were already dominated by Loctite and Liquid Nails, and that eliminating the fierce head-to-head competition between them would inevitably drive up prices and reduce innovation for both do-it-yourself consumers and professional tradespeople. Because the FTC opted to seek a permanent injunction directly, it could not rely on the lower "public interest" standard; it had to definitively prove to the federal judge that the merger would substantially lessen competition under Section 7 of the Clayton Act.[2][3][4]

Despite the higher legal burden and the stricter federal rules of evidence, the Southern District of New York sided with the FTC, issuing the permanent injunction and validating the agency's new strategic direction. While the court's specific findings of fact remain under seal, the victory demonstrates that the FTC can successfully litigate complex horizontal merger challenges to a final judgment without the safety net of its administrative courts. For the agency, the win is a crucial proof of concept, confirming that it can maintain an aggressive enforcement posture while simultaneously neutralizing the constitutional vulnerabilities that have plagued its recent dockets. The successful block of the $725 million transaction ensures that the construction adhesives market remains competitive, delivering a tangible win for everyday consumers facing "pocketbook" issues.[1][3][6]

For corporate dealmakers and antitrust counsel, the Henkel decision fundamentally alters the strategic landscape of merger defense. Companies contemplating acquisitions with potential antitrust overlap can no longer treat the initial federal court proceeding as a mere preliminary hearing focused on maintaining the status quo. Instead, they must prepare for a full-scale, exhaustive trial on the merits from the very outset of the litigation. While this requires significantly more upfront preparation and resources, it also offers a streamlined path to resolution. By eliminating the parallel administrative track, merging parties can achieve a faster, more definitive outcome, avoiding the protracted uncertainty that historically defined FTC merger challenges. Furthermore, the shift aligns the FTC's procedural posture with that of the DOJ, providing dealmakers with a consistent, unified federal framework regardless of which agency reviews their transaction.[3][4][5][6]