A "major" candidate is defined as being invited to participate in the televised debates, and/or receiving over 10% in at least 5 consecutive polls from different pollsters, anytime between now and the end of the 2028 Democratic primaries.

If a major candidate proposes an existing federal agency should be tasked with developing an AI x-risk framework, that doesn't count. If a major candidate proposes the creation of an entire new Cabinet-level department to deal with the impact of AI on the economy or environment, but doesn't specifically mention x-risk, that doesn't count either.

What counts is if a Democratic presidential candidate, treated by the media & public as having a serious chance of winning the nomination, says something along the lines of "AI might kill us all, and we should create a new Cabinet-level department tasked with figuring out a response", even if it's an off-the-cuff statement at a debate or town hall that they don't ever follow up on.