Regarding AI alignment and existential risk in general, Cummings already has a blog post where he mentions these: https://dominiccummings.com/2019/03/01/on-the-referendum-31-project-maven-procurement-lollapalooza-results-nuclear-agi-safety/
So he is clearly aware and responsive to the these ideas, it would be great to have an EA minded person on his new team to emphasise these.
Exactly, he has written posts about those topics, and about ‘effective action’, predictions and so on. And there is this article from 2016 which claims ‘he is an advocate of effective altruism’, although it then says ‘his argument is mothball the department (DFID)’, which I’m fairly sure most EAs would disagree with.
But as he’s also written about a huge number of other things, day-to-day distractions are apparently the rule rather than the exception in policy roles, and value drift is always possible, it would be good to have someone on his team, or with good communication channels to them, who can re-emphasise these issues (without publicly associating EA with Cummings or any other political figure or party).