Mid 2027 seems too late to me for such a candidate to start the official campaign.
For the 2020 presidential election, many democratic candidates announced their campaign in early 2019, and Yang already in 2017. Debates happened already in June 2019. As a likely unknown candidate, you probably need a longer run time to accumulate a bit of fame.
Note that GWWC is shutting down their donor lottery, among other things: https://forum.effectivealtruism.org/posts/f7yQFP3ZhtfDkD7pr/gwwc-is-retiring-10-initiatives