Like Kamala Harris, he would make more sense as a VP nominee (although he would similarly be a bad choice overall). His politics and California provenance would be an albatross around any Presidential candidate's neck, but access to the lucrative California establishment Democrat donor network might outweigh the electoral deadweight.
[1]: https://www.latimes.com/california/story/2020-12-31/question...
> Kinney is well known around the state Capitol as a strategist, ghostwriter of Newsom’s speeches and unofficial fixer summoned to help loosen the governor from political jams. His dual roles as an advisor to Newsom and a lobbyist paid by companies to influence the governor and his staff have raised questions about potential conflicts of interest for the administration.