His campaign is stillborn.
So long as Trump is capable of running strong, everyone else’s campaign is either for 2028+ or a contingency in the even that Trump ceases to be capable of running a strong campaign, either because his health fails or he decides to pack it in.
The later is unlikely in that Trump seems to share the constitution of Hamilton, for better or worse.
That said, Jackson is undoubtedly better than all of the Dem Senators and Governors, and probably most of the Pub ones as well. It goes without saying that that is a very low standard.