I think Trump wants the attention, but not the Presidency. Trump has no ground game and Cruz is building an excellent base. Still a lot of time to go.
Gosh, I just read on here earlier today that Trump has an excellent ground game going - guess you missed that??? Trump needs the attention? He could sit back and retire right now and leave this mess to someone else if he chose to do so. Some of you are delusional. I think it is the other candidates who want the fame and attention.
If you want to believe Trump has no ground game, you will hate this article: Secret sign-ups and TV foot soldiers: Donald Trump's campaign is for real