"Garry Tan is hopeful about Trump" [0].
Donor lookup for Gustaf Alstromer [1].
Paul Buchheit "So good!" (video of RJK Jr. talk), reposting a tweet with the caption "they could have done it any time. They chose not too. Thats why ppl voted against them" on another tweet about illegal border crossings [3].
Jared Friedman "The young engineers going to DOGE remind me of the early days of the US Digital Service, when a bunch of SV engineers moved to DC to fix http://healthcare.gov. It's the same energy, but now the mandate isn't to fix the government's tech, it's to fix the government." [4]
Michael Seibel "Had an amazing talk about the US economy tonight. All kinds of feelings. Opportunities/ challenges abound. I choose to be optimistic." [5]
It looks like there are a few board members that are either keeping silent about politics or are more vocally against Trump and some of his policies, but a large portion or the majority are actively supporting Trump.
Considering the motivation of YC, the sentiment of many of the prominent figures and the brief amount of Googling, I would say that YC is much more in lock step than not. So it looks like, for the most part, I did jump to conclusions correctly.
[0] https://punchbowl.news/article/tech/garry-tan-trump-ai-crypt...
[1] https://www.opensecrets.org/donor-lookup/results?cand=tech+f...
[2] https://x.com/paultoo/status/1890191142689632593
[3] https://x.com/razibkhan/status/1890167090692387028
[4] https://x.com/snowmaker/status/1886672263216504853
[5] https://x.com/mwseibel/status/1888457501806653835