There are several reasons why I still find his nomination improbable, or even close to implausible.
1. People are going to be getting a lot more aggressive in debates. In the last debate, Trump was quite battered by Cruz until he was thrown a lifeline with the whole "NY values". I expect Cruz to really lay it into him in future encounters, and if/when people like Rubio and Christie start directing their fire to him, it will be very difficult for him to fight back. In addition, assuming he lasts as the field winnows down, his relative lack of policy knowledge is going to show and he will tire easily.
TRUMP is a great debater. He's won every debate so far. Why would he start doing poorly now? Hackery.
The supposed ineptitude of his ground game is severely overrated by media HACKS.
Studies have shown that TRUMP supporters don't care about his supposedly unconservative positions.
"People think he will do well, therefore he will do bad." lol
TRUMP is not going to fail to meet expectations.
TRUMP is the only candidate expanding beyond the traditional GOP base. This is a strength, not a weakness.
TRUMP is the most electable candidate.