The key to the Cruz victory can be understood by close examination of a near bottom paragraph in the Politico reporting on the Cruz victory:
Most of the delegates elected were affiliated with Rocky Mountain Gun Owners, a conservative organization with a history of flexing its organizing muscle in Colorado politics.I'm told that the Colorado gun owners just don't trust Trump on gun ownership because he has been all over the map on the issue. Cruz, on the other hand, regardless of his other positions is solid on the right to carry a gun, something that, of course, is very important to gun owners.
Also, of note, the executive director of Rocky Mountain Gun Owners is Dudley Brown, who I am told is close to Mike Rothfeld, the former Ron Paul Inc. operative who was unceremoniously cut by Rand Paul in the closing weeks of Rand's campaign as Rand was running out of cash.
There is some speculation that Rothfeld is doing some work for Cruz.
This, of course, does not mean that Trump delegate weren't scratched from the ballot, as reported. Just that Cruz played a slicker (more crooked?) game. Still, if Trump was more solid on guns, it would have been more difficult for Cruz to pull off his stunt.