You have to concede the debates turning into reality TV has to do with the fact that the guy driving all the discussion is infact a reality TV star. This is somewhat by design, Trump knows what he is doing.
I think it is pretty obvious at this point he loves running against Jeb because he is by far the easiest to repeatedly clown and mock. Most moderate on immigration and most labeled as establishment. The antithesis of Trump's campaign.
Jeb has had a mini-surge in recent weeks though. Feels like he isn't dropping out anytime soon. The longer he stays in it seems like him and Rubio just eat each others support and Trump can cruise.
The books do indicate that Bush is climbing the latter somewhat, I do agree he has as I indicated climbed into 3rd place
behind Trump & Rubio at 5dimes to win the general election from the republican side. I also agree Trump toys with Bush
because he's an easy target & totally agree that Trump knows what is needed to win & knows what he's doing.