I’m not convinced that Carson’s delegates would support Trump or Cruz. They’d be just as likely to go for Rubio or some other establishment candidate. I’m quite sure that Carson is a ringer, posing as an anti-establishment candidate. On the few issues where he can coherently state a specific policy position (as opposed to feel-good rhetoric), he seems like an even more clueless and muddled version of Jeb Bush, albeit with more religious rhetoric in the mix. Carson’s only non-establishment credential is not being a career politician. The same is true of Fiorina, who in spite of not being a career politician is also as GOP establishment as they come.
Are you aware that Trump and Carson have known each other for decades. Long history together.