Antitrust chief resignation raises uncertainty about the enforcement of antitrust law in the USA

Abigail Slater’s departure from the U.S. Department of Justice’s antitrust leadership raises significant questions about the future direction of competition enforcement. Although her appointment at the end of 2025 was seen as a sign of continued strict antitrust enforcement inherited from the Biden administration, her recent resignation casts doubt on whether this policy will be maintained under the Trump administration.

Leadership Change and Its Impact on Regulatory Strategy

The chief is leaving after the White House requested her departure. This move coincides with growing internal disagreements within the Department of Justice over how to oversee mergers and acquisitions. The transition raises key questions about whether a firm approach to antitrust law will be preserved or softened in the coming months.

Internal Disagreements Evident in Recent Merger Decisions

Internal tensions have become apparent through contradictory decisions. Last month, despite technical recommendations from Slater and department competition experts for a detailed review of Anywhere Real Estate’s acquisition by Compass, the agency approved the deal without further investigation.

Previously, controversy surrounding Hewlett Packard Enterprise’s acquisition of Juniper Networks had led to the dismissal of two senior deputies of Slater, indicating substantial conflicts over regulatory priorities.

Other Cases Under Scrutiny Reveal Regulatory Complexity

The division responsible for antitrust enforcement continues examining the dispute between Netflix and Paramount Global over the potential acquisition of Warner Bros. Discovery, demonstrating that multiple transactions remain under critical review.

These events suggest a transitional phase in antitrust enforcement, with the future administration still defining its intervention criteria in large-scale business deals.