When Colorado Republicans scrapped their binding straw poll as part of the state’s March 1 caucuses, it looked like they were forfeiting their relevance in the GOP’s front-loaded nomination process.

Now, they’re back in the game.

With a still unsettled three-way primary fight appearing to be headed for a contested convention in July, Colorado’s GOP assemblies over the next week offer Donald Trump and Ted Cruz a major opportunity to win a significant pile of delegates chosen almost completely by party insiders. Now, it’s up to the three candidates to convince the party to pick delegates who promise to vote in their favor.

“It’s chaos. It’s a cluster. It’s the ultimate insider’s game,” said Josh Penry, a GOP operative in Denver who chaired Marco Rubio’s campaign in Colorado. “There are so many delegates in play.”