Earlier quoted context omitted.
It appears that it was the EU which blocked the deal rather than the US.
Do you have a source to back this up or you're just assuming? So far I've only seen FTC statements on this and they wouldn't have been too pleased with the merger.
https://media.irobot.com/2024-01-29-Amazon-and-iRobot-agree-...
"Amazon's proposed acquisition of iRobot has no path to regulatory approval in the European Union, preventing Amazon and iRobot from moving forward together—a loss for consumers, competition, and innovation."