The elected candidate, who is a human, would clearly be responsible for whatever actions are taken, no?
YOU ACCEPT AND AGREE THAT ANY USE OF OUTPUTS FROM OUR SERVICE IS AT YOUR SOLE RISK AND YOU WILL NOT RELY ON OUTPUT AS A SOLE SOURCE OF TRUTH OR FACTUAL INFORMATION, OR AS A SUBSTITUTE FOR PROFESSIONAL ADVICE.
Waymo, on the other hand, has liability insurance for every single one of their cars, and apparently they get a pretty good rate for their size because they have fewer accidents per car than the average person. The concept of fault is a bit different for them than for a single person. They would have to develop a pattern of systemic failures, rather than an isolated incident, before real questions of liability arise.
I'm from the UK, my best example of this is from 2001, when the Conservative Party started running campaign posters saying "You paid the tax so where are the trains?" despite being responsible for the privatisation of the trains before they lost power.
https://www.alamy.com/one-of-posters-from-the-conservative-p...
https://archives.bodleian.ox.ac.uk/repositories/2/archival_o...