Is it possible to have a Presidential candidate who isn't in a political party?
Yes, it's called independent.
That is what we call "Independent Party"
Candidate? Yes. We've had several independent candidates recently. Elected one. That's because parties dominate. Third-party candidates don't.
It sure sounds good right now.
Independent There's also been other party names that didn't last long.
Everyone serious candidate has to run on a ticket.