“Yes, a straw poll at the caucuses.”
The national party said that the Colorado party could not conduct a straws poll and then ignore the results when assigning delegates.
That was the issue. Rather than take the straw poll or have an actual primary the Cruz supporters simply rigged the caucus and cancelled the poll. There was more support for Trump in the building than the results showed.
It may not have been an underhanded, dirty, sleazy or cheap trick but it certainly LOOKED like it was especially when a Cruz zombie in the state party tweeted “We did it!” shortly after the caucus had ended. This was where the “Trump’s too stupid to follow the rules” meme started and many Republicans that had previously had Ted Cruz as their second choice abandoned him completely.
Colorado was, paradoxically a last gasp for Ted Cruz because even though he “won” he came out looking like a slime-ball whether he was or not. The whole caucus in Colorado just reeked of dirty politics.
The whole point of the convoluted way it was set up was to make it challenging for anyone who was not already involved in local party politics to participate in any meaningful way. Regular voters were definitely not the target audience for all these multiple stages of delegate selection of local Republican figures. They used to at least have a presidential straw poll too, as you mentioned, so the populaces preferences for presidential nominee could be noted, but they cancelled that this time after Trumps rise, because it might be too obvious how much the state convention was going against the wishes of the people.
Because people only got a chance to vote for very low-level local delegates instead of the presidential candidates, there is naturally no vote tally by candidate for the so-called Colorado caucuses. Every other state (except for ND, which likewise passed on a vote among the populace for the nominee) has vote totals from their caucus or primary. If CO had a real vote, then there would be a vote tally by presidential candidate for that state. CO does not and cannot have one, since they never had a vote. Thats also why the CO caucuses got next to no national coverage on Super Tuesday. Why would the press cover a bunch of little local elections at the CO caucuses when they had real elections for the presidential nominee to cover in many other states?