The GOP pulled the primary of the table in August when they saw the Trump surge...they did it so as NOT to allow the people of Colorado a vote....this was a stop Trump effort pure and simple. That was the intent all along.
This kind of “process” by the GOP establishment only solidifies that anger the GOP base has toward them and helps Trump in the long run....the problem is NOT Trump...it is the GOP.
You don’t know for sure that the GOPe pulled in August for that reason. The reason given was that it was too early and they don’t want to waste their votes on those pulled out. With that said, I agree with you. The GOP probably did it to stop Trump.
BUT... Trump hosed his own pooch by firing his CO man two days before the election then submitted his delegate sheet chock full of errors including even the wrong delegate that actually belonged to Cruz. The GOPe didn’t do this. CRUZ didn’t do this. TRUMP did this.