If the remaining sensible, reasonable Democrats determine the nominee, it will be Gov. Josh Shapiro, Gov. Roy Cooper, Gov. Gretchen Whitmer, or Gov. Andy Beshear. But, judging from the mountain of angry attacks on the nine responsible, bipartisan, rational Senators who voted for the funding bill to avoid a shutdown, sensible Democrats are in the minority and won't be able to determine the nominee.
Newsom would be a GOP dream come true, given his miserable economic record, his mishandling of the LA forest fires, his record on denying parental rights regarding their children's gender, his admission that it's unfair to force women to compete against biological males while refusing to stop it, etc., etc.