Trump (and Stitt for that matter) SHOULD get it as well with the other former POTUS. No one knows exactly how long immunity last after you get it. There are over 14.2 million people in the US who have had COVID (which is increasing at a rate of 200K+ per day right now) will need to get it as well.
There are documented cases of people catching it twice, so we KNOW you can get it more than once
There are documented cases of people catching it twice, so we KNOW you can get it more than once