First of all, i've heard some comments saying Trump will be too old in 2024. I say f that. He may be in his 80's come 2024 but he is a very fit healthy person, so age will not be an issue for him.

I think it is perfectly reasonable for him to run for Congress in 2022 to get back in spotlight and from there launch into the 2024 campaign.

Otherwise he can start his 2024 campaign this very moment. This is why i think those demons on both sides want to try and impeach Trump so he can't run again. There is no way 17 Republicans are going to vote to impeach Trump, so he will most definitely be able to run again.