The judge set to hear the lawsuit filed by the US Department of Justice to block the proposed merger between American Airlines and US Airways is no stranger to some of the nation’s largest antitrust lawsuits. US District Judge Colleen Kollar-Kotelly, who will hear the case, also handled the lawsuit filed by the DOJ, along with 18 states, against Microsoft in one of the largest antitrust cases in US history. Microsoft was accused of abusing its monopoly; Judge Kollar-Kotelly took over the case in 2001 following another judge’s ruling against Microsoft and monitored the case until 2011. Cases are assigned to judges at random, but antitrust lawyers told media Wednesday she will likely be a good fit for the case and weigh both sides equally. The DOJ filed a lawsuit against the airline merger last Tuesday, with six states and Washington, D.C. also included as plaintiffs.
Featured News
Federal Court Narrows Turkey Price-Fixing Lawsuit, Clears Perdue and Foster Farms
Jul 9, 2026 by
CPI
Italy Penalizes Character.AI Owner Over Child Safety and Privacy Controls
Jul 9, 2026 by
CPI
State AGs Prepare Antitrust Complaint Against Paramount-Warner Bros. Discovery
Jul 9, 2026 by
CPI
Latham & Watkins Expands Brussels Antitrust Practice
Jul 9, 2026 by
CPI
EU Makes SAP Antitrust Commitments Binding in ERP Support Case
Jul 9, 2026 by
CPI
Antitrust Mix by CPI
Antitrust Chronicle® – Due Process
Jul 7, 2026 by
CPI
The Hart‑Scott‑Rodino Act at Fifty: Procedure, Thresholds, Serial Acquisitions, and Industry Dynamics
Jul 7, 2026 by
Ginger Zhe Jin, Mario Leccese, Daniel Sokol, Liad Wagman & Mengyi Zhong
Due Process In Competition Cases: Reflections As Of 2026
Jul 7, 2026 by
Ian Forrester & Pablo Trevisan
When Referees Become Reformers: Due Process and Constitutional Considerations in Competition Market Investigations
Jul 7, 2026 by
John Taladay & Christine Ryu-Naya
Procedural Fairness in Antitrust Enforcement: A Comparative Analysis
Jul 7, 2026 by
J. Mark Gidley & Daniel Sokol