I think he would have learned from the last time, that it matters who you build around. It is fundamentally important to surround yourself with big brains, high charisma, high energy type people. If they play this smart they set themselves up for 2028 and a succession plan, it is also enough time to get someone like Ramaswamy capable to run.
He does have some obstacles he will need to clear out fast, establishment Republican saboteurs. Romney, McConnel, McCarthy, Christie, Graham. They are charlatans.
Then it will be about the policies, the electorate does not like to wait, there are quite a few low hanging fruits to start that process off.