Yep. His 15 minutes might be up in 2028. JFK in 1960. Clinton in 1992. Obama in 2008. All were young. In their 40s. When you have your chance, you go for it.
Wrong reason to run.
Running in 2028 after he's out of office and can run as a full-time candidate without the baggage of a "real" job would make a lot more sense, it seems.