Mark Levin spreads this through the website he controls as editor-- Conservative Review-- an "objective" news website which demonstrates just how rigged and corrupt the entire system is. Despite Levin pretending to be objective, this website was spreading false Anti-Trump propaganda for quite some time. It even provides a "rating" for candidates, posing as totally objective. Meanwhile, looking through the people who write or run this website, we see Ted Cruz BFFs or even a Cruz speech writer.
So Levin controls a website that is basically an arm of the Cruz campaign, with no mention of the conflicts of interest that riddle this website, and even Levin fails to reveal that his son-in-law is a full time staffer and that he has received hundreds of thousands of dollars from a Pro-Cruz SuperPac.
So, after all of this, Levin has the nerve to tell us Colorado isn't rigged, when he is one of the most corrupt radio hosts around.