To add to RB-G's statement, it's absolutely clear he never wants another one. Because he's saying "I want to be able to do that, is that possible."
Not as an ordinary citizen, it's not. Which means it's only possible if he becomes President. And as he's term limited, it means he's saying that he never wants another, or he intends to ignore the 22nd Sec 1, and run for a third term.