The combined requirements of govt purchasing must carry the mark and major US surveillance tech manufacturers like Amazon are leading the rollout, makes this seem less like a cybersecurity concern and more of a protectionist carve out.
You mean get stuck in a legal battle which takes years where Amazon denies responsibility and pushes everything to the original vendor, who for some reason went out of business 15 minutes before the suit was filed?
At least as early as August 2023. Less than three quarters of the way through his presidency. Something that started at least 17 months ago can hardly be considered "last minute".
EDIT:
Found the answer for you since you can't be bothered (previously saw the date in some other doc reading about this):
> When was the U.S. Cyber Trust Mark program created?
>> In August 2023, the FCC sought public comment on how to create the Cyber Trust Mark program. In March 2024, based on public input, we adopted rules establishing the framework for the program.