The US Congress has been on Sony's case since it started opposing Microsoft's landmark purchase of Activision Blizzard. Recently, US legislators have called out the PlayStation maker for alleged underhanded business practices against Xbox as well as hampering the progress of the Xbox via its exclusivity deals in Japan.

Congress representatives now have the US Federal Trade Commission in their crosshairs. A lawmaker asked the antitrust regulator to explain why it sided with Sony in its opposition to the Microsoft and Activision Blizzard merger. The FTC filed a lawsuit several months ago to block the landmark deal that is worth $69 billion.

During the April 18 hearing for the FTC budget for 2024, Republican representative Diana Harshbarger took the opportunity to inquire why the agency "sided with Sony" in blocking the deal between Microsoft and Activision Blizzard. The lawmaker alleges that the FTC is protecting Sony which controls "68% of the global market for high-end video gaming consoles.

"Sony has been the most vocal opponent of that deal, and the FTC has sided with Sony," Harshbarger said. "Can you explain why?"